OPLDatabaseFile 0@ Feature: Type: Latitude: (Abbott Seamountseamount31 48N174 18E" Abington Reefreef18 00S149 45E" Abra Canyoncanyon17 31N120 22E%Abraham Canyoncanyon52 37N172 20E! Abrolhos Bankbank18 30S38 45W+Abrolhos Seamounts seamounts17 20S36 30W$Accomac Canyoncanyon37 46N74 02W  Acis Shoalsreefs3 45N112 39E Acor Bankbank38 10N29 20W  Adak Basinbasin51 05N177 00W" Adak Canyoncanyon51 25N177 05W Adams Bankbank41 20S176 00E'Adams Seamountseamount50 01N176 14W)Adare Seamounts seamounts70 00S171 30E$Addington Patchreef15 36N114 24E$ Adelie Valleyvalley65 30S136 00E'Admundsen Troughtrough70 30N123 00W'Admundsen Valleyvalley71 30N128 00W(Adolph Seamountseamount11 55S178 10W#Adriatic Basinbasin42 00N17 30E#Adriatic Plainplain41 50N17 55E"Adventure Bankbank37 20N12 10E Aegir Ridgeridge66 10N3 45W$Africana II Bankbank46 00S42 30E)Africana Seamountseamount37 10S29 10E# Afungi Canyoncanyon10 47S40 47E# Agadir Canyoncanyon32 30N12 50W$ Aganak Canyoncanyon51 55N177 18W3Agassiz Fracture Zone fracture zone38 15S127 15W&Agassiz Valleysvalleys24 00N82 45W$ Agattu Canyoncanyon52 23N172 35E*Agerholm Seamountseamount34 25N135 35W" Aguja Canyoncanyon11 40N74 10W  Agulhas Bankbank35 30S21 00E" Agulhas Basinbasin47 00S27 00E&Agulhas Plateauplateau40 00S26 00E& Ahyi Seamountseamount20 25N145 02E/Aja Fracture Zone fracture zone56 00N145 00W! Akashi Knollknoll8 12N145 05E! Alaminos Bankbank28 01N91 45W%Alaminos Canyoncanyon26 30N94 35W)Alarcon Seamountseamount23 37N108 45W" Alaska Plainplain55 00N143 00W$ Albany Canyoncanyon35 30S118 10E'Albany Seamountseamount38 35N37 15W#Albatross Bankbank56 10N152 20W#Albatross Bankshoal17 40N75 40W/Albatross Cordillera cordillera45 00S115 00W%Albatross Knollknoll33 00N119 57W)Albatross Plateauplateau10 00N103 00W Albay Shoalreef9 57N118 29E2Albemarle Shelf Valley shelf valley36 50N75 21W! Alboran Basinbasin36 00N4 00W! Alboran Plainplain35 55N3 50W! Alboran Ridgeridge35 55N3 05W#Alboran Troughtrough36 07N3 00W-Alcala de Chivert Canyoncanyon40 14N1 25E'Alden Seamountseamount49 05N158 45W"Alderdice Bankbank28 05N92 00W" Alert Patchesreefs4 09N118 15E! Aleut Knollknoll51 23N175 54E# Aleut Valleyvalley51 15N176 12E$Aleutian Basinbasin57 00N177 00E$Aleutian Ridgeridge51 30N178 00W" Aleutian Riserise49 50N175 00E(Aleutian Terraceterrace50 40N179 00W&Aleutian Trenchtrench51 00N170 00W Alexa Bankreef11 35S175 20E2Alexander Agassiz Guyot tablemount17 54N178 33E+Alexander Seamountseamount18 57N153 28W"Alexandra Bankreef8 02N110 37E'Alexandria Canyoncanyon31 45N30 00E Alga Bankbank37 02N13 29E"Algerian Basinbasin40 00N5 00E/Algerian-Tyrrhenian Troughtrough38 21N9 25E%Algol Seamountseamount2 15S84 30W Alice Reefreef4 46N119 05E Alice Shoalreef16 05N79 22W%Alicia Annie Reefreef9 25N115 28E Alida Reefreef0 59N107 51E Alidade Bankbank35 45N1 30W Alison Reefreef8 49N114 06E% Alix Seamountseamount17 31S61 22E*Allegheny Seamountseamount36 52N58 45W( Allison Guyot tablemount18 31N179 36W#Almeria Canyoncanyon36 33N2 30W,Almirante Brown Canyoncanyon46 10S59 00W,Almirante Leite Knollsknolls26 07S35 05E3Almirante Saldanha Seamountseamount22 30S37 30W+Alpha Cordillera cordillera85 30N125 00W" Alphard Banksbanks35 02S20 52E*Alphecca Seamountseamount18 20N117 08W# Alsek Valleyvalley58 30N139 30W'Altair Seamountseamount44 40N34 00W$Altnacraig Shoalreef9 00N118 20E)Alula-Fartak Trenchtrench14 04N51 47E"Alvarado Ridgeridge5 30S83 45W" Alvin Canyoncanyon39 52N70 30W% Amami Plateauplateau28 10N132 10E%Amatignak Basinbasin50 55N179 38W'Amatignak Canyoncanyon51 08N179 28W#Amatignak Spurspur51 00N179 25W$Amazon Canyonscanyons3 30N48 20W Amazon Fanfan5 00N47 30W" Ambelau Basinbasin4 15S126 40E&Amchitka Canyoncanyon51 15N179 53E" Amchitka Spurspur51 30N179 45E%Ameghino Canyoncanyon43 40S57 20W# Amelia Canyoncanyon12 53S40 40E$Amerasia Basinbasin80 00N170 00W,America-Antarctic Ridgeridge59 00S16 00W-America-Antarctica Ridgeridge59 00S16 00W  Amery Basinbasin68 15S74 30E  Amirante Bankbank6 00S53 10E"Amirante Basinbasin7 00S54 00E"Amirante Ridgeridge6 00S53 10E$Amirante Trenchtrench8 00S52 30E! Amlia Basinbasin52 30N173 00W# Amlia Canyoncanyon52 54N173 15W1Amlia Fracture Zone fracture zone50 00N173 00W! Amlia Knollknoll53 05N173 53W  Ammen Basinbasin42 50N68 45W Ammen Rockreef42 53N68 55W Ammen Swellrise42 50N68 35W'Ampere Seamountseamount35 05N13 00W$ Amukta Canyoncanyon53 10N171 45W$Amundsen Plainplain65 00S125 00W&Amundsen Troughtrough70 30N123 00W%Amy Douglas Bankbank10 50N116 15EAn Riserise49 30N150 00E&Anatolian Troughtrough40 00N24 30E&Anaximander Ridgeridge35 30N30 00E" Andaman Basinbasin10 00N94 00E*Andaman Nicobar Ridgeridge12 00N93 00E)Andregg Seamountseamount25 46N169 48E*Andrew Tablemount tablemount6 45N50 30E Anegada Gapgap18 20N64 15W  Angola Basinbasin15 00S3 00E  Angola Plainplain15 00S2 00E Angria Bankbank16 30N72 05E! Anguilla Bankbank18 30N63 03W" Animal Basinbasin31 20N117 35W" Antalya Basinbasin35 40N31 30E$Antalya Canyoncanyon36 40N30 40E"Antelope Shoalreef8 44N117 12E+Antialtair Seamountseamount43 37N22 27W  Antoine Bankbank27 50N92 18W%Anton Bruun Ridgeridge8 48S51 45E,Anton Dohrn Seamountseamount57 30N11 00W! Aotea Knollknoll37 35S172 03E$ Apache Troughtrough51 00N164 39E"Appelbaum Bankbank27 51N94 15W,Applequist Seamountseamount55 25N142 45W)Apuupuu Seamountseamount18 34N155 28W#Aquitaine Shelfshelf44 50N1 42W" Arabian Basinbasin11 30N65 00E# Arafura Shelfshelf10 00S137 00E! Arakane Reefreef15 37N142 45E,Archimedes Seamountseamount13 19N110 28W#Ardasier Reefsreefs7 36N114 17E# Arena Canyoncanyon38 58N124 07W*Argentina Seamountseamount37 25S18 10E$Argentine Basinbasin45 00S45 00W$Argentine Plainplain47 30S50 00W$ Argo Bank tablemount23 30S159 15E/Argo Fracture Zone fracture zone13 45S66 10E  Argo Plainplain14 00S117 00E&Arguello Canyoncanyon34 21N121 05W  Arguello Fanfan34 00N122 00W(Arguello Terraceterrace34 30N120 55W  Ariel Bankreefs38 43S178 18E#Arlington Reefreef16 43S146 02E Arlis Gapgap84 00N170 00E Arlis Spurspur75 45N179 30E+Armoricain Seamountseamount46 27N12 25W$Armoricain Shelfshelf46 50N3 20W#Arrowsmith Bankreef21 05N86 28W&Arroyo Seamountseamount6 15N22 40W  Artimon Bankbank45 10N58 00W Aru Basinbasin5 00S134 00E Aruba Gapgap13 45N72 00W'Ascension Canyoncanyon36 55N122 28W3Ascension Fracture Zone fracture zone7 20S14 00W! Ashmore Reefreef12 14S123 05E'Ashton Seamountseamount38 00N13 20W)Asterias Seamountseamount38 54N65 18W%Astoria Canyoncanyon46 15N124 30W Astoria Fanfan45 15N126 15W-Astoria Seachannel seachannel45 00N125 50W! Astrid Ridgeridge68 00S12 00E%Astrolabe Reefsreefs19 49S165 35E'Astrolabe Troughtrough19 30S178 30E  Atka Basinbasin51 20N174 00W" Atka Canyoncanyon52 45N173 47W& Atka Seamountseamount50 16N175 10W*Atlantic-Indian Basinbasin60 00S15 00E*Atlantic-Indian Ridgeridge53 00S15 00E%Atlantis Canyoncanyon39 52N70 12W3Atlantis Fracture Zone fracture zone30 00N42 00W6Atlantis II Fracture Zone fracture zone33 00S57 00E.Atlantis II Seamounts seamounts38 27N63 07W)Atlantis Seamountseamount34 00N30 15W$Atwater Valleyvalley27 30N87 30W,Auckland Islands Shelfshelf50 25S167 00E#Aucklands Spurspur52 00S165 25E$ August Canyoncanyon52 30N176 51E Aurora Reefreef0 43N129 32E  Austell Spurspur48 15N11 00W3Austral Fracture Zone fracture zone20 00S130 30W3Austral Fracture Zone fracture zone19 30S126 00W+Austral Seamounts seamounts22 40S152 45W" Avalon Knollknoll33 24N118 13W Aves Apronapron15 00N65 00W Aves Ridgeridge14 00N63 30W" Aviles Canyoncanyon43 55N6 19W Avon Canyoncanyon6 10N3 55E&Axarfjardhardjupvalley66 26N16 53W'Ayers Seamountseamount26 16N166 25E  Ayu Troughtrough3 30N132 30E&Ayugadak Canyoncanyon51 30N178 07E%Azores Plateauplateau39 00N30 00W&Azores-Biscay Riserise42 40N19 00W+Azores-Gibraltar Ridgeridge37 00N16 00WAzur Fanfan43 25N7 30E$Babylon Canyoncanyon39 30N71 56W  Baccaro Bankbank43 00N64 48W! Baffin Basinbasin73 15N67 00W)Bagration Seamountseamount15 25S6 27W+Bahama Escarpment escarpment23 15N74 00W)Bahia Blanca Canyoncanyon41 25S54 20W/Bain Fracture Zone fracture zone46 00S32 20E)Baird Seamounts seamounts16 15N162 20W:!Baja California Seamount Provinceprovince26 00N124 00W Bajapa Reefreef4 40N119 06E Baker Fanfan55 14N136 07W Baker Reefreef10 44N116 10E+Baker Seachannel seachannel54 34N137 15W# Bakkafloadjupvalley66 15N14 00W(Balabac Great Reefsreefs7 56N116 55E(Balanus Seamountseamount39 25N65 23W! Baldwin Bankreef12 52S126 10E"Balearic Plainplain40 30N6 00E" Balfour Shoalreef15 27N114 00E Bali Basinbasin7 50S116 00E# Balleny Basinbasin67 00S170 00E3Balleny Fracture Zone fracture zone62 00S156 00E+Balleny Seamounts seamounts61 00S161 30E%Balleny Troughtrough66 00S158 00E" Balmoral Reefreef15 40S175 52E&Baltimore Canyoncanyon38 03N73 44W# Bampton Reefsreefs19 15S158 22E(Banc de la Sentinellebank38 00N9 42E Banda Reefreef3 50N118 01E" Banda Trenchtrench5 00S131 00E&Banderas Canyoncanyon20 30N105 46W! Bankok Shoalreef16 00N114 05E Banks Riserise75 30N132 00W! Banks Shelfshelf73 00N126 00W! Banks Slopeslope74 30N128 00W Banquereaubank44 30N58 30W*Banzare Seamounts seamounts58 50S77 44E Baranof Fanfan55 49N137 22W-Baranof Seachannel seachannel55 00N137 30W#Barbados Ridgeridge12 45N59 35W%Barbados Troughtrough12 00N59 23W,Barcoo Tablemount tablemount32 20S156 20E'Bardin Seamountseamount13 56S53 38E" Barents Plainplain83 00N35 00E$Barents Troughtrough75 00N29 00E%Barkley Canyoncanyon48 15N126 10W Barlas Bankbank54 00S37 20W&Barque Canada Reefreef8 12N113 19E Barra Fanfan56 50N10 00W$Barracouta Reefreef12 36S124 02E4Barracuda Fracture Zone fracture zone16 00N51 00W$Barracuda Plainplain17 00N56 30W"Barracuda Reefreef8 54N118 07E$Barracuda Ridgeridge16 10N57 00W! Barren Ridgeridge12 15N93 30E'Barrier Plateauplateau35 40S175 45E$ Barrow Canyoncanyon72 30N154 00W Barrow Sillsill79 30N96 30W  Barwon Bankbank26 30S153 35E" Bass Canyoncanyon38 40S149 05E" Bassett Shoalreef15 28N114 10E)Batavia Seamountseamount25 45S100 20E/Bathymetrists Seamounts seamounts7 30N21 30W! Batjan Basinbasin1 00S126 45E Batt Reefreef16 25S145 46E! Bauer Basinbasin10 00S101 45W1Bauer Fracture Zone fracture zone15 00S100 00W  Bauer Scarpscarp8 00S103 30W(Bayonnaise Bankseamount12 07S179 43W)Beachport Terraceterrace38 00S139 00E  Beagle Reefreef15 17S123 28E& Bean Seamountseamount52 15N147 00W% Bear Seamountseamount39 55N67 25W" Bear Valleyvalley40 29N124 45W*Beata Escarpment escarpment16 10N72 50W$ Beata Plateauplateau14 40N71 00W  Beata Ridgeridge16 00N72 30W Beata Spurspur14 40N71 40W(Beaton Seamountseamount26 05N162 50E! Beaufort Reefreef4 24N118 45E" Beaufort Riserise72 00N143 30W$Beaufort Shelfshelf70 00N142 30W$Beaufort Slopeslope71 00N145 00W(Beaufort Terraceterrace73 00N140 00W%Beaufort Valleyvalley32 18N78 10W Beauge Bankbank49 45N60 09W%Beethoven Ridgeridge26 14N159 00W# Beirut Canyoncanyon33 55N35 10E Belem Ridgeridge0 05N40 45W  Belgica Bankbank78 28N15 00W! Belgrano Bankbank73 00S48 30W Belize Fanfan18 00N86 30W%Belle-Ile Canyoncanyon46 20N4 47W)Bellingshausen Plainplain64 00S90 00W)Bellini Seamountseamount32 42N163 11W'Bellona Plateauplateau20 30S158 30E# Bellona Reefsreefs21 00S159 00E%Bellona Saddlesaddle36 45S166 30E" Bellona Shoalreef21 00S159 45E%Bellona Valleyvalley40 00S165 45E%Bellsund Valleyvalley77 20N12 50E&Benham Plateauplateau16 30N124 45E(Benham Seamountseamount15 48N124 15E%Benicarlo Canyoncanyon40 21N1 22E%Benicasim Canyoncanyon40 08N1 25E"Benrinnes Reefreef5 51N118 45E" Beothuk Knollknoll46 06N46 30W$ Bering Canyoncanyon54 08N168 15W)Bering Channel seachannel54 40N172 30W  Bering Spurspur54 11N168 22E+Bering Strait Valleyvalley65 45N168 30W%Berkeley Canyoncanyon38 57N72 45W  Berkner Bankbank75 00S48 00W  Berlanga Riserise8 30N93 30W(Berlin Seamountseamount32 51N166 00W  Bermuda Riserise32 30N65 00W+Bernoulli Seamountseamount18 10N111 50W%Berufjardharallvalley64 08N13 25W! Bethel Shoalshoal27 44N80 11W! Bethune Bankreef19 35S174 15W#Beveridge Reefreef20 02S167 52W-Bicentenary Seamountseamount19 24S175 28W)Bill Baileys Bankseamount60 35N10 15W" Bird Canyoncanyon51 24N178 15E  Biscay Plainplain45 00N7 15W'Biscay Seamountseamount45 25N10 35W  Bishop Rockreef32 27N119 08W(Bishop Seamountseamount18 50N159 02W  Bittern Reefreef9 14N113 40E$Bizerte Canyoncanyon38 23N10 00E'Bizet Seamountseamount32 16N161 38W%Black Mud Canyoncanyon47 40N7 42W$Blackfin Ridgeridge26 00N159 00W,Blackhaw Seamounts seamounts14 00N167 55W! Blacks Basinbasin43 08N69 18W  Blake Basinbasin29 00N76 00W" Blake Canyoncanyon30 13N76 03W*Blake Escarpment escarpment29 00N76 45W# Blake Knollsknolls32 17N118 15W$ Blake Plateauterrace31 00N79 00W Blake Reefreef4 44N119 13E Blake Spurspur30 00N76 30W'Blake-Bahama Ridgeridge29 00N73 30W2Blanco Fracture Zone fracture zone43 30N128 00W$ Blanco Saddlesaddle42 35N125 30W$ Blanco Trenchtrench44 20N130 00W" Blavet Canyoncanyon46 37N4 52W Bligh Bankshoal51 36N2 46E" Block Canyoncanyon39 50N71 16W'Block Island Ridgeridge41 06N71 32W5Block Island Shelf Valley shelf valley40 35N71 37W,Blue Ridge Seamountseamount15 08N117 06E*Boa Vista Seamountseamount15 48N22 08W$ Bobrof Canyoncanyon51 57N177 32W5Bode Verde Fracture Zone fracture zone11 00S16 30E$ Bodega Canyoncanyon38 14N123 35W)Bogorov Seamountseamount42 30N136 30E&Bogoslof Canyoncanyon53 55N167 48W" Bolles Knollknoll49 00N157 45W-Bollons Tablemount tablemount49 40S176 10W! Bombay Castlereef7 56N111 42E  Bombay Shoalreef9 26N116 55E3Bon Homme Richard Seamountseamount19 21N175 33W" Bonaire Basinbasin11 25N67 30W%Bonaparte Basinbasin13 00S128 00E)Bonaparte Seamountseamount15 50S6 50W Bone Basinbasin6 00S121 00E! Bonin Ridgeridge26 30N142 30E)Bonin Seamounts seamounts26 00N144 00E# Bonin Trenchtrench23 00N145 00E'Bonnecamps Canyoncanyon43 05N60 25W  Booshu Spurspur63 34N172 17W  Boot Reefsreefs10 01S144 39E*Borchgrevink Canyoncanyon70 15S170 15E  Boreas Basinbasin77 30N1 00E  Boreas Plainplain77 00N1 00E  Borneo Shoalreef7 20N117 30E&Bougainville Reefreef15 30S147 06E Bouma Bankbank28 03N92 27W# Boundary Bankknoll32 28N117 37W,Bounty Seachannel seachannel46 32S177 30E$ Bounty Troughtrough46 00S178 00E*Boutelle Seamountseamount39 01N131 05W2Bouvet Fracture Zone fracture zone55 00S001 00E)Bowditch Seamountseamount32 44N64 33W  Bowers Bankbank54 18N179 30E" Bowers Basinbasin53 45N176 00E$ Bowers Canyoncanyon52 50N179 25W$ Bowers Canyoncanyon71 55S172 30E" Bowers Ridgeridge54 00N180 00E(Bowers Seamountseamount54 05N174 47E# Bowie Canyoncanyon52 34N179 00E'Bowie Seamountseamount53 18N135 38W! Bowlers Reefreef41 43S174 18E! Bowling Bankbank33 58S172 15E Boxall Reefreef9 36N116 11E$ Boyd Seamountseamount72 41N2 55E! Bradelle Bankbank47 25N62 55W" Bradley Reefsreefs6 52S160 48E# Braemer Ridgeridge15 45S177 00E(Brahms Seamountseamount31 09N162 19W'Bransfield Troughtrough61 30S54 00W  Brategg Bankbank65 16S68 35W! Brazil Basinbasin15 00S25 00W'Breidhamerkurdjupvalley63 37N15 40W  Bremen Bankreef16 18N112 28E$ Bremer Canyoncanyon35 00S119 55E)Brigham Seamountseamount19 08N158 44W Bright Bankbank27 53N93 18W.Brisbane Tablemount tablemount26 45S155 00E%Bristol Canyoncanyon54 55N169 00W/Britannia Tablemount tablemount28 20S155 35E1Britannia Tablemounts tablemounts28 15S155 30E# Broad Canyoncanyon51 12N175 51E# Broke Canyoncanyon35 25S116 10E# Broken Ridgeplateau31 30S95 00E+Broken-Top Guyot tablemount26 05N144 10E&Bromley Plateauplateau32 00S35 00W" Brooks Banksbanks24 05N166 50W! Broughton Gapgap42 39S171 44W)Brouwer Seamountseamount32 00S109 00E Brown Bankbank21 30N74 44W,Brown Bear Seamountseamount46 01N130 25W Brown Reefreef10 39N117 27E'Brown Seamountseamount55 00N138 30W  Brownes Bankbank36 25S21 15E Browns Bankbank42 40N66 05W  Bruce Ridgeridge60 00S35 00W Bruce Spurspur63 30S101 15E'Bryan Seamountseamount17 55N152 44W Bryant Bankbank28 01N92 28W(Bryant Seamountseamount49 20N157 57W"Buccaneer Bankbank21 25N80 08W&Buell Seamountseamount39 05N66 24W,Buffington Seamountseamount24 15N167 26E$ Bukhti Canyoncanyon51 47N177 33E" Buldir Basinbasin52 12N176 42E  Buldir Reefreef52 09N176 21E" Bull Pen, Thebasin44 15N61 35W2Bullard Fracture Zone fracture zone58 02S12 00W  Bulldog Bankbank10 02S50 56E% Bulls Scarp escarpment32 35N78 37W# Burdick Knollknoll45 51N157 48W$ Burdwood Bankplateau54 15S59 00W Burgeo Bankbank47 10N57 55W" Burica Canyoncanyon8 00N82 45W(Burton Seamountseamount32 00S171 45W Buru Basinbasin2 30S127 00E'Busch Seamountseamount27 40N161 50E# Bushett Reefsreefs42 42S173 30E$Bushnell Knollknoll31 24N119 00W! Butung Basinbasin6 00S123 30E" Byrd Canyoncanyon75 30S157 15W  Cabliers Bankbank35 48N2 18W&Cabo Creus Canyoncanyon42 21N3 29E*Cabrillo Seamountseamount22 50N109 15W*Cadamosto Seamountseamount14 40N24 55W'Caesar Seamountseamount40 13N12 15E%Cagayan Canyoncanyon18 25N121 36E$Cagliari Canyoncanyon38 55N9 27E$Cagliari Troughtrough38 49N9 27E"Calabar Canyoncanyon3 53N8 14E,California Seamountseamount17 50N124 00W Callou Bankreef9 21N107 45E/Caloosahatchee Seamountseamount34 40N49 45W#Camaguey Ridgeridge20 00N82 00W$Cameron Canyoncanyon43 05N49 39W" Campbell Bankbank41 46S174 44E+Campbell Island Shelfshelf52 15S169 30E(Campbell Plateauplateau51 00S170 00E.Campbell Seachannel seachannel47 15S173 30E*Campbell Seamountseamount50 15N141 55W" Campbell Spurspur55 00S166 00E! Campeche Bankbank22 00N90 00W%Campeche Canyoncanyon20 30N92 30W-Campeche Escarpment escarpment24 35N87 00W" Canada Basinbasin80 00N145 00W" Canada Plainplain80 00N140 00W! Canary Basinbasin30 00N25 00W! Canary Ridgeridge28 00N15 00W& Cano Seamountseamount10 16N110 00W Canso Bankbank45 10N60 20W#Cantabria Knollknoll45 04N7 59W(Cantor Seamountseamount16 19N109 22W&Cap Breton Canyoncanyon43 40N1 50W&Cap Ferret Canyoncanyon44 42N2 30W Cape Basinbasin37 00S7 00E(Cape Fear Terraceterrace33 14N77 21W2Cape Johnson Tablemount tablemount17 08N177 15W)Cape Johnson Troughtrough8 45S165 15E  Cape Knollknoll52 34N176 29E)Cape Lookout Shoalsshoals34 30N76 30W Cape Plainplain34 45S6 00E Cape Riserise42 00S15 00E%Cape Verde Basinbasin15 00N30 00W%Cape Verde Plainplain23 00N26 00W+Cape Verde Seamountseamount15 20N21 52W)Cape Verde Terraceterrace18 00N20 00W+Capel Tablemount tablemount25 16S159 15E#Capricorn Sillsill18 45S154 00E/Capricorn Tablemount tablemount18 35S172 12W#Carbonara Ridgeridge38 47N9 35E*Cardno Tablemount tablemount12 53S6 08W&Cardonal Canyoncanyon22 51N110 00W)Cargados Carajos Bankbank16 30S59 45E# Cargo Canyoncanyon52 27N176 30E" Cariaco Basinbasin10 37N65 10W&Carlisle Canyoncanyon53 28N170 15W&Carlsbad Canyoncanyon33 06N117 24W#Carlsberg Ridgeridge6 00N61 00E$ Carmel Canyoncanyon36 32N121 58W" Carmen Basinbasin26 20N110 40W#Carnatic Shoalreef10 06N117 21E"Carnegie Ridgeridge1 00S85 00W(Carnegie Seamountseamount0 15S81 53W#Caroline Ridgeridge8 00N150 00E#Carondelet Reefreef5 33S173 50W$Carpenter Shoalreef16 04N114 17E# Carson Canyoncanyon45 27N48 39W%Carstens Valleyvalley38 26N70 42W&Carter Seamountseamount8 58N21 10W%Carteret Canyoncanyon38 52N72 50W&Caryn Seamountseamount36 40N67 56W$Cascadia Basinbasin47 00N127 30W  Cascadia Gapgap43 35N128 30W$Cascadia Plainplain47 00N127 30W.Cascadia Seachannel seachannel43 30N130 00W#Cascais Canyoncanyon38 20N9 35W! Cashes Basinbasin42 53N69 04W! Cashes Ledgeridge42 53N68 55W*Castellammare Canyoncanyon38 47N13 37E,Castle Rock Seamountseamount36 17N51 21W Castor Bankreef12 51S47 38E' Castor Guyot tablemount25 50N147 00E! Caswell Spurspur44 45S166 40ECat Gapgap24 30N74 30W! Cat Shoalsshoals70 37N149 05W$Catalina Basinbasin33 10N118 30W&Catalina Canyoncanyon33 23N118 33W.Catalina Escarpment escarpment33 16N118 25W! Cathay Shoalreef15 54N113 58E'Cathedral Troughtrough53 00S165 15E" Cato Troughtrough23 10S155 00E" Catoche Knollknoll23 48N85 10W$Catoche Tonguetongue23 30N86 00W'Cavalli Canyonscanyons34 47S174 05E" Cawston Shoalreef15 31N113 46E! Cay Sal Bankreefs23 45N80 00W Cayman Bankreef19 19N81 34W! Cayman Ridgeridge19 30N80 30W# Cayman Trenchtrench19 00N80 00W Ceara Plainplain0 00N36 30W# Ceara Plateauplateau3 15S37 30W Ceara Ridgeridge4 30N43 30W# Ceara Terraceterrace2 10S39 15W,Cedros Escarpment escarpment27 30N115 30W$ Cedros Trenchtrench27 45N115 45W$ Ceduna Canyoncanyon35 45S132 45E&Ceduna Terraceterrace35 00S132 00E" Celebes Basinbasin4 00N122 00E#Celestial Reefreef54 32N131 27W*Celestial Seamountseamount3 03S169 19W  Celtic Shelfshelf49 15N7 00W" Central Basinbasin73 30N43 00E+Central Basin Troughtrough16 45N130 00E*Central Pacific Basinbasin5 00N175 00W  Central Reefreef8 55N112 21E" Central Slopeslope27 10N92 50W&Central Terraceterrace27 50S34 15E*Central Viti Canyoncanyon39 03S172 29E  Centre Bankbank41 30S174 45E,Centre Seachannel seachannel46 13S172 45E" Ceram Troughtrench2 25S129 30E)Cermeno Seamountseamount10 23N108 46W*Cerralvo Seamountseamount24 12N109 35W&Cerralvo Troughtrough24 15N109 45W! Ceuta Canyoncanyon35 55N5 18W Ceva-i-Rareef21 45S174 35E  Ceylon Plainplain4 00S82 00E Chagos Bankbank6 15S72 00E" Chagos Trenchtrench7 00S73 30E.Chagos-Laccadive Plateauplateau3 00N73 00E&Chagulak Canyoncanyon53 15N171 20W/Chain Fracture Zone fracture zone2 00S16 00W  Chain Knollknoll28 14N68 26W Chain Ridgeridge6 00N54 00E)Challenger Bank tablemount32 05N65 03W$Challenger Deepdeep11 20N142 12E6Challenger Fracture Zone fracture zone34 00S110 00W*Challenger Plateauplateau40 00S169 30E"Chambers Knollreef4 49N119 13E*Chamorro Seamountseamount20 18N144 42E*Champlain Seamountseamount20 15S37 20W&Chaplino Valleyvalley64 10N171 47W Charcot Fanfan66 00S86 00W*Charcot Seamounts seamounts45 00N11 30W! Charles Quintreef34 56N11 52E'Charleston Valleyvalley32 42N77 50W Charlie Gapgap78 00N171 00W8Charlie-Gibbs Fracture Zone fracture zone52 45N35 30W"Charlotte Bankreef7 07N107 37E$Charlotte Bankknoll11 47S173 13E'Chase Seamountseamount42 04N139 35W! Chatham Riserise43 30S180 00E,Chautauqua Seamountseamount22 10N162 40W%Chazhma Canyoncanyon55 09N162 00E%Chebacco Canyoncanyon40 12N67 57W  Chelan Bankbank54 04N166 34W(Chelan Seamountseamount49 45N131 32W(Cheref Seamountseamount19 55N145 28E(Cherkis Seamountseamount43 23N25 43W  Chile Basinbasin33 00S80 00W Chile Riserise40 00S90 00W%Chinook Troughtrough44 00N173 45W$Chirikof Basinbasin64 30N169 00W*Chirikof Seamountseamount54 50N153 00W(Chopin Seamountseamount26 08N162 03W(Christiaensen Basinbasin40 27N49 45W&Christian Canyoncanyon62 00N39 00W$Christmas Ridgeridge5 00N160 00W#Christmas Riserise13 00S103 00E.Chuckchi Borderland borderland77 00N165 00W# Chukchi Plainplain77 00N172 00W'Chukchi Plateauplateau78 00N165 00W! Chukchi Riserise78 00N165 00W1Chuo-goto Seachannels seachannels33 15N128 10E$Cilicia Troughtrough35 50N33 30E%Cindy Seamountseamount7 40N21 25W# Cipangu Basinbasin35 00N150 00E%Circeo Terraceterrace41 05N12 45E*Clairaut Seamountseamount17 59N110 29W&Clarence Troughtrough55 10N131 52W  Clarion Bankbank20 50N74 00W3Clarion Fracture Zone fracture zone18 00N122 00W  Clark Basinbasin10 50N80 40W Clark Reefreef8 05S139 40W'Clark Seamountseamount20 00N157 38W'Clayoquot Canyoncanyon49 00N126 37W! Claypile Bankbank28 20N94 10W+Clifford Smith Canyoncanyon44 35N49 05W$Clipper Canyoncanyon40 00N68 40W6Clipperton Fracture Zone fracture zone10 00N115 00W&Clipperton Ridgeridge10 30N110 00W-Clipperton Seamounts seamounts8 00N111 00W0Cobb Fracture Zone fracture zone47 20N130 00W& Cobb Seamountseamount46 46N130 49W! Cochrane Bankreef3 50N113 15E-Coco-de-Mer Seamounts seamounts0 30N56 00E Cocos Basinbasin5 00S94 00E Cocos Plainplain3 00S93 30E Cocos Ridgeridge5 30N86 00W&Cocos-Keeling Riserise13 00S96 00E Coiba Ridgeridge6 30N81 45W)Colahan Seamountseamount31 15N176 00E# Colbeck Basinbasin77 00S159 30W! Colmer Knollknoll20 28N86 12W# Colnett Basinbasin30 50N117 00W$Colombian Basinbasin13 00N76 00W$Colombian Plainplain13 00N76 00W%Colombian Trenchtrench4 45N78 15W Colon Ridgeridge2 00N96 00W)Colorado Seamountseamount33 15N37 20W"Columbia Ledgereef43 57N68 08W)Columbia Seamountseamount20 30S32 00W#Columbus Knollknoll24 35N74 13W$Colville Ridgeridge34 30S177 30E%Colvocoresses Reefreef4 53N72 37E# Combe Bankseamount12 32S177 35W  Combe Shoalreef15 48N113 54E! Comino Ridgeridge40 40N10 16E# Comino Troughtrough40 40N10 10E"Commodore Reefreef8 23N115 14E! Comoro Basinbasin14 00S44 00E! Comoro Plainplain13 45S44 30E*Comstock Seamountseamount48 15N156 55W#Conception Bankbank29 30N12 45W# Condor Bankseamount7 30N148 04E Condor Reefreef8 05N147 51E%Conducia Canyoncanyon14 55S40 50E! Congo Canyoncanyon6 00S11 50E Congo Fanfan6 00S9 00E&Congolene Canyoncanyon16 06S40 15E)Congress Seamountseamount33 07N54 49W  Connell Reefreef5 07N112 35E0Conrad Fracture Zone fracture zone56 00S4 00W(Conrad Seamountseamount29 45S168 00W-Constantine Seamountseamount20 30S171 20E)Constantine Valleyvalley51 27N179 30E" Conway Ridgeridge42 40S173 39E$ Conway Troughvalley42 40S173 35E Cook Bankbank50 56N128 40W" Cook Canyoncanyon43 17S169 35E*Cook Seachannel seachannel43 30S166 00E)Cook Strait Canyoncanyon41 20S174 35E" Cook Troughtrough51 06N128 18W" Cooper Ridgeridge10 15N150 30W,Coral Patch Seamountseamount34 56N11 57W%Coral Sea Basinbasin14 00S152 00E! Cordell Bankbank38 00N123 25W&Coriolis Troughtrough19 30S170 00E)Corner Seamounts seamounts35 30N51 30W)Cornwallis South Reefreef8 45N114 14E" Coronado Bankbank32 35N117 24W&Coronado Canyoncanyon32 30N117 22W.Coronado Escarpment escarpment32 36N117 26W'Correira Guyot tablemount6 29S57 11E$Corsair Canyoncanyon41 20N66 11W%Corsica Terraceterrace41 40N9 50E! Cortes Bankknoll32 28N119 10W$ Coulee Canyoncanyon51 42N176 21E  Coulee Spurspur51 53N176 24E! Cow Pen, Thebasin44 12N61 25W'Cowie Seamountseamount54 15N149 30W Cox Ledgebank41 06N71 10W(Cramer Seamountseamount24 06N164 13E Crary Bankbank75 00S169 00E'Crary Seamountseamount84 00N135 00W+Crawford Seamount tablemount38 45S11 10W Creagh Reefreef4 22N118 38E)Crescent Seamountseamount33 13N65 38W" Crespi Knollknoll33 06N117 52W! Crest Basinbasin52 26N174 54E! Crest Knollknoll52 29N174 55E'Crest Seamountseamount24 35N117 05W# Cretan Troughtrough36 00N25 00E)Crosley Seamountseamount16 55N152 26W'Cross Seamountseamount18 45N158 15W(Crough Seamountseamount24 45S121 45W" Crowell Basinbasin42 55N67 20W&Crowther Canyoncanyon49 48N127 45W! Crozet Basinbasin39 00S60 00E%Crozet Plateauplateau46 00S51 00E! Crozet Ridgeridge45 00S45 00E,Cruiser Tablemount tablemount32 00N28 00W&Crumb Seamountseamount43 28N23 15W"Cuarteron Reefreef8 50N112 47E%Cultivator Shoalshoal41 30N68 10W" Curacao Ridgeridge13 00N68 00W+Currituck Seamountseamount30 00S173 30W! Cutts Knollknoll49 18N157 25W" Cuvier Basinbasin22 00S111 00E" Cuvier Plainplain22 00S111 00E&Cuvier Plateauplateau24 00S108 00E! Cyprus Basinbasin33 40N34 00E-D'Entrecasteaux Canyoncanyon35 20S115 50E&Dacia Seamountseamount31 10N13 42W%Dai-go-goto Bankbank33 11N128 14E'Dai-ichi-goto Bankbank33 22N128 44E%Dai-ni-goto Bankbank33 00N128 26E'Dai-roku-goto Bankbank33 12N128 08E&Dai-san-goto Bankbank33 00N128 22E&Dai-shi-goto Bankbank33 08N128 22E+Daikakuji Seamountseamount32 05N172 18E-Daini-kinan Seamountseamount30 09N136 42E Daisy Bankbank44 39N124 44W! Daito Ridgeridge25 30N133 00E" Dakar Canyoncanyon14 45N17 48W Dall Bankbank32 52N119 25W& Dall Seamountseamount58 10N145 35W Dallas Reefreef7 38N113 53E& Daly Seamountseamount18 08N157 40W  Damar Ridgeridge6 50S129 30E%Dame Marie Ridgeridge18 20N75 30W# Dampier Ridgeridge32 30S157 40E'Dampier Seamountseamount11 10S0 24W/Dana Fracture Zone fracture zone12 30S95 00W& Dana Seamountseamount18 38N155 57W Danas Bankbank62 40N51 15W" Danas Valleyvalley62 35N51 05W$Danells Valleyvalley60 42N42 15W&Danielsen Canyoncanyon64 00N34 00W Dantes Holehole8 17N104 08W& Daon Seamountseamount17 58N145 30E' Darwin Guyot tablemount22 04N171 35E David Knollknoll6 24N50 15E David Spurspur52 22N178 41E" Davidson Bankbank54 00N163 45W*Davidson Seamountseamount35 43N122 43W  Davie Ridgeridge17 10S41 45E&Davie Seamountseamount36 30S23 30E Davis Bankshoal41 15N69 40W  Davis Basinbasin42 48N68 21W! Davis Knollknoll34 07N120 55W'Davis Seamounts seamounts51 30S4 30E Davis Sillsill65 30N57 00W%Davis Strait Riserise66 00N59 00W# Dawson Canyoncanyon43 00N61 05W% Day Seamountseamount18 40N156 20W.De Gerlache Seamounts seamounts65 00S90 30W+De Koningh Seamountseamount53 22S25 00E+De Krafft Seamountseamount13 53N156 17W$De Soto Canyoncanyon29 00N87 30W,De Venster Seamountseamount30 15N177 30E)Debussy Seamountseamount30 18N162 05W+Dehlinger Seamountseamount42 00N137 19W! Del Cano Riserise45 15S44 15E" Delfin Basinbasin29 40N113 50W%Delgada Canyoncanyon40 02N124 10W Delgada Fanfan39 15N126 00W&Dellwood Knollsknolls50 42N130 15W,Dellwood Seamounts seamounts50 37N130 42W&Dellwood Valleyvalley50 49N130 25W#Demerara Plainplain10 00N48 00W&Demerara Plateauplateau8 00N54 00W" Denham Ridgeridge19 50S178 30E$ Denham Troughtrough20 00S178 45E" Dennis Knollknoll51 03N177 42E(Denson Seamountseamount54 00N137 15W" Denys Canyoncanyon42 47N50 16W+Derickson Seamountseamount52 50N161 15W4Derwent Hunter Tablemount tablemount31 00S156 15E$Deryugin Basinbasin54 00N146 00E&DesBarres Canyoncanyon44 00N53 27W+Descartes Seamountseamount14 06N108 45W-Detroit Tablemount tablemount51 15N167 45E Devils Holebasin56 38N0 40E  Devon Shelfshelf75 30N74 00W  Devon Slopeslope74 00N70 00W+Devonport Seamountseamount31 32S175 23E6Diamantina Fracture Zone fracture zone36 00S105 00E$Diamond Shoalsshoals35 12N75 30W Diana Reefreef22 31N74 47W Diane Bankreef15 50S149 40E  Diaphus Bankbank28 05N90 42W" Dibble Basinbasin65 20S133 00E)Dickins Seamountseamount54 30N137 00W! Dickins Shoalreef8 18N117 32E'Dietrich Guyot tablemount5 37N26 53W+Dietz Tablemount tablemount22 37N176 30E7Discovery II Fracture Zone fracture zone41 00S42 50E$Discovery Ridgeridge27 50N68 02W-Discovery Tablemount tablemount42 00S0 10E Disko Bankbank69 15N55 00W  Disney Reefreef19 17S174 06W*Dispatch Seamountseamount27 42N119 20W,Dixie Jane Seamountseamount18 40N162 08E'Dixon Seamountseamount12 36N179 15W# Dixon Valleyvalley54 19N133 00W  Djibouti Bankbank36 10N3 43WDjupallvalley66 35N24 00W2Dmitri Mendeleyev Seamountseamount4 52N154 58E$Dogbody Canyoncanyon40 03N68 47W! Dogfish Reefreef54 09N131 32W Dogger Bankbank55 00N3 00E2Doldrums Fracture Zone fracture zone8 10N39 15W! Dolphin Spurspur38 15S165 00E,Dom Joa'o de Castro Reefreef38 13N26 38W/Don Juan de Austria Shoalsreefs7 38N118 10E Donegal Fanfan56 10N10 10W*Donelson Seamountseamount25 06N169 28E+Donizetti Seamountseamount32 20N160 00W%Dordrecht Basinbasin33 30S101 20E(Dorsey Seamountseamount48 48N156 45W% Dowd Guyot tablemount13 27N119 39W*Downwind Seamountseamount16 37N114 47W'Dragon Seamountseamount34 55N16 30W%Drygalski Basinbasin74 50S166 30E2Du Toit Fracture Zone fracture zone49 00S28 00E$Dubinin Troughtrough67 10S80 30E" Dume Canyoncanyon33 58N118 48W! Dumshaf Plainplain68 00N5 00E*Duntroon Seamountseamount35 25S133 05E  Durand Reefreef22 02S168 39E(Durgin Seamountseamount56 00N142 00W" Dutton Ridgeridge20 05N149 15E(Dutton Seamountseamount20 03N158 02W(Dvorak Seamountseamount30 31N161 20W-Earl Dalhousie Bank tablemount8 08N144 57E.East Aves Escarpment escarpment13 00N63 00W6East Azores Fracture Zone fracture zone36 30N26 00W%East Cape Ridgeridge37 30S179 00E'East Cape Troughtrough52 19N176 12E(East Caroline Basinbasin4 00N146 45E'East Cortes Basinbasin32 15N118 30W+East Flower Garden Bankbank27 55N93 36W East Hindershoal51 35N2 40E(East Indiaman Ridgeridge27 00S99 15E(East Mariana Basinbasin12 00N153 00E&East Mexico Shelfshelf24 00N97 30W/East Novaya Zemlya Troughtrough73 30N61 00E9East O'Gorman Fracture Zone fracture zone14 00N101 30W&East Pacific Riserise20 00S115 00W East Reefreef8 49N112 33E East Reefreef15 53N78 35W&East Scotia Basinbasin57 00S35 00W%East Sheba Ridgeridge14 30N56 15E+East Tasman Plateauplateau43 30S152 00E%East Thulean Riserise51 40N21 45W2Easter Fracture Zone fracture zone26 00S100 00W-Eastern Bradelle Valleyvalley47 50N62 30W$Eastern Shoalsshoals46 27N50 30W#Eastward Knollknoll28 32N69 09W! Eauripik Riserise3 00N142 00E  Ebeling Reefreef0 28N107 25EEbro Fanfan40 40N3 36E# Echizen Banksbanks36 15N135 45E% Echo Seamountseamount25 23N19 25W  Echuca Reefreef13 54S123 55E)Eclipse Seamountseamount19 10S159 21W1Ecuador Fracture Zone fracture zone3 00N84 30W Edoras Bankbank56 00N22 00W$Edremit Troughtrough39 30N25 30E  Edwards Bankreef7 43S159 41E! Eel Canyoncanyon40 39N124 35W-Eendracht Seamounts seamounts28 30S103 00E  Egeria Bankreef16 01N114 56E1Egeria Fracture Zone fracture zone20 00S66 30E&Egmont Terraceterrace39 37S172 05E  Eia Canyoncanyon7 52S147 56E&Eickelberg Ridgeridge48 30N133 10W,Eickelberg Seamountseamount48 30N133 10W*Einstein Seamountseamount13 52N110 17W  Eirik Ridgeridge58 40N44 00W%El Ferrol Canyoncanyon44 03N9 15W Elbow, Theridge27 41N84 09W Eldad Reefreef10 20N114 40E$Elizabeth Basinbasin43 20N70 00W$Elizabeth Shoalsreef3 55N113 10E! Ellice Ridgeridge8 00S178 00E'Ellis Seamountseamount19 10N157 42W3Eltanin Fracture Zone fracture zone54 00S130 00W Elvers Bankbank27 50N92 53W% Ely Seamountseamount56 15N145 40W*Embattle Seamountseamount10 45N164 10W Emden Deepdeep10 39N126 36E  Emerald Bankbank43 30N62 30W# Emerald Basinbasin53 30S162 00E" Emerald Basinbasin44 00N62 45W! Emery Basinbasin31 50N118 08W! Emery Knollknoll33 02N118 24W(Emilia Seamountseamount43 50N131 54W(Emmons Seamountseamount15 56N166 50W+Emperor Seamounts seamounts42 00N170 00E%Emperor Troughtrough43 00N175 30E+Endeavour Seamountseamount18 56S169 26W+Endeavour Seamountseamount48 16N129 05W#Endeavour Spurspur53 40S176 40E" Enderby Plainplain60 00S40 00E  Enderby Reefreef7 23N149 07E$Endurance Ridgeridge62 30S40 00W" Enganno Basinbasin6 00S103 45E,Engelbrecht Seamountseamount36 15S14 20E&Enoshima Canyoncanyon35 14N139 26E.Equatorial Seachannel seachannel3 45S31 00W1Eratosthenes Tablemount tablemount33 50N32 40E+Erben Tablemount tablemount32 52N132 32W(Eriador Seamountseamount54 40N25 20W&Erica Seamountseamount38 15S14 30E*Erickson Seamountseamount25 33N169 10E'Erimo Seamountseamount40 55N144 55E*Error Tablemount tablemount10 20N56 05E$Escanaba Ridgeridge41 10N127 12W&Escanaba Troughtrough41 00N127 30W'Esmeralda Bankseamount14 57N145 15E'Esperance Canyoncanyon34 40S121 45E'Esperanza Canyoncanyon49 40N127 30W)Espinosa Seamountseamount9 38N114 10W%Etienne Canyoncanyon52 40N171 20E(Euclid Seamountseamount12 45N110 30W'Euler Seamountseamount16 03N112 00W" Eurasia Basinbasin87 00N80 00E%Everard Canyoncanyon38 20S149 27E Ewing Bankbank28 06N91 02W%Ewing Seamountseamount23 20S8 45E'Ewing Seamountseamount20 20N174 10E'Exmouth Plateauplateau19 00S114 00E*Explorer Seamountseamount49 05N130 48W-Explorer Tablemount tablemount16 55N83 15W&Explorer Trenchtrench49 00N130 35W&Eyjafjardhardjupvalley66 25N18 45W$ Eyre Terraceterrace34 00S127 00E(Fabert Seamountseamount24 07S158 33W'Fairway Plateauplateau20 45S161 00E! Fairway Reefreef21 00S161 45E(Fairweather Groundbanks58 22N138 50W-Fairweather Seamountseamount19 51N113 01W Fairy Bankshoal51 25N2 20E  Falcon Bankreef19 19S174 07W-Falkland Escarpment escarpment50 00S45 00W3Falkland Fracture Zone fracture zone49 20S41 00W'Falkland Plateauplateau51 00S50 00W%Falkland Troughtrough53 00S54 00W! Fantome Bankreef11 38S123 57E*Faraday Seamounts seamounts49 30N28 30W$Farallon Basinbasin25 30N110 00W.Farallon Escarpment escarpment37 42N123 10W)Farfalla Seamountseamount40 25N12 30E'Faris Seamountseamount54 30N147 15W! Faroe Bankseamount60 55N8 40W Faroe Gapgap61 23N8 15W*Faroe Shetland Troughtrough61 00N4 00W(Faroe-Iceland Ridgeridge64 00N10 00W#Farquhar Ridgeridge10 00S51 00E,Father Charles Canyoncanyon48 40N126 30W$Fathometer Reefreef54 17N165 17W"Fearless Shoalreef7 23N117 37E(Feinga Seamountseamount20 09S175 09W Feni Ridgeridge53 45N18 00W+Ferna'o Veloso Canyoncanyon14 22S40 48E.Fernando de Noronha Plainplain03 00S31 00W! Ferraz Ridgeridge14 00S33 00W(Ferrel Seamountseamount29 30N117 18W(Ferris Seamountseamount29 00S102 45W0Fieberling Tablemount tablemount32 22N127 50W# Field Bankseamount12 17S174 48W$Fiery Cross Reefreef9 38N112 57E+Fifty Fathoms Flat, Thebank18 30N71 30E$ Fiji Plateauplateau17 00S173 00E'Filebottom Canyoncanyon40 11N67 59W,Fillebrown Seamountseamount15 05N162 55W'Finch Seamountseamount17 32N157 35W%Fiordland Basinbasin45 30S165 30E$Fippennies Ledgebank42 47N69 18W&First Thomas Shoalreef9 20N115 56E+Fishers Island Furrowfurrow41 11N71 54W)Fishers Island Ridgeridge41 12N71 51W  Fishing Ripshoal41 05N69 25W  Fishnet Bankbank28 09N91 49W"Fiskenaes Bankbank63 18N52 10W(Flanagan Seamountseamount8 22N21 22W$ Flavio Gioiaseamount40 00N13 05E Flemish Capbank47 00N45 00W  Flemish Passpass47 00N46 45W$Fletcher Plainplain86 00N179 59W&Flinders Canyoncanyon39 38S148 50E$Flinders Reefsreefs17 37S148 31E*Flinders Seamountseamount34 40S159 44E Flora Reefreef16 45S147 45E! Flores Basinbasin7 45S120 00E,Florida Escarpment escarpment27 00N85 15W)Florida Middle Groundbank28 30N84 15W" Florida Plainplain25 30N86 00W" Florida Reefsreefs24 50N80 40W+Florida-Hatteras Slopeslope31 00N80 00W" Fonera Canyoncanyon41 52N3 27E'Forde Seamountseamount35 01S170 07W! Formigas Reefreef18 30N75 45W)Forster Seamountseamount48 57N133 50W  Fortune Bankreefs7 13S57 00E$Fortymile Bankknoll32 39N117 58W Foss Reefreef14 25S176 00W! Foster Ridgeridge54 30N25 30W$Four Ladies Bankbank67 30S77 30E4Four North Fracture Zone fracture zone4 00N32 15W)Fourier Seamountseamount14 05N111 00W Fram Bankbank67 18S70 00E Fram Basinbasin88 00N90 00E  Frances Reefreef4 27N119 15E&Francisco Canyoncanyon7 04S147 05E#Franklin Basinbasin42 05N68 05W)Franklin Seamountseamount57 54N26 30W&Franklin Shoalsshoals76 00S169 00E"Franklin Swellrise42 05N68 55W-Frants-Viktoriya Troughtrough81 00N40 30E$ Fred Seamountseamount6 14S54 23E&Frederikshabs Bankbank62 16N50 45W)Frederiksted Canyoncanyon17 41N65 01W" Freen Troughtrough42 41N20 00W French Bankbank44 45N61 07W*French Frigate Shoalsreef23 45N166 10W"Friedrich Reefreef4 14N118 21E$Friendship Shoalreef5 58N112 31E#Frindsbury Reefreef5 00S159 09E Froya Bankbank63 45N7 30E& Fryer Guyot tablemount20 30N148 00E'Frying Pan Shoalsshoals33 45N77 55W$ Fuerte Canyoncanyon25 33N109 32W Fugloy Bankbank71 00N20 00E  Fugloya Bankbank71 00N19 20E Fukue Bankbank32 47N128 27E" Fukuyama Peakpeak22 22N143 07E$Fundian Valleyvalley42 20N66 30W% Funk Seamountseamount46 15S37 25E Fyllas Bankbank64 00N53 00W(Gagarin Seamountseamount1 30N154 15W4Galapagos Fracture Zone fracture zone0 00N100 00W"Galapagos Riserise15 00S97 00W)Galapagos Seamountseamount0 58S87 45W  Galicia Bankbank42 40N11 45W' Gallieni Bank tablemount46 30S39 40E3Gallieni Fracture Zone fracture zone37 00S52 15E(Galois Seamountseamount12 52N106 28W& Galvez Banks seamounts13 04N144 27E# Gambell Shoalshoal64 00N170 45W! Gambia Plainplain12 00N28 00W3Gambier Fracture Zone fracture zone57 00S147 30E Gamen Reefreef7 26N144 38E Ganges Fanfan12 00N87 00E! Gardar Ridgeridge57 15N26 00W%Gardner Valleyvalley25 00N167 30W*Garibaldi Seamountseamount39 08N13 45E# Garnet Bankseamount33 05S49 25W3Garrett Fracture Zone fracture zone13 20S112 00W# Garrett Ridgeridge32 37N119 32W"Gascogne Knollknoll45 21N5 24W$Gascoyne Plainplain16 00S110 00E.Gascoyne Tablemount tablemount36 30S156 30E'Gauss Seamountseamount15 24N110 56W! Gaven Reefsreefs10 12N114 14E# Gazelle Basinbasin32 00S170 00EGem Reefreef5 36N119 09E  Genista Bankbank16 33N53 28E'Genji Seamountseamount33 20N172 15E$Gentatsu Shoalshoal36 14N135 45E Gentry Bankbank21 48N70 40W$ Genzan Troughtrough39 40N129 40E$Geofizikov Spurspur84 45N165 00E)George Bligh Bankseamount58 55N13 45W'George Seamountseamount33 20N60 48W4George V Fracture Zone fracture zone53 30S141 00E  Georges Bankbank41 15N67 30W" Georges Basinbasin42 25N67 00W$Georges Canyoncanyon41 16N66 16W" Georges Shoalshoal41 40N67 45W&Gerda Seamountseamount36 15N57 30W(Gerdes Seamountseamount48 42N160 25W*Gershwin Seamountseamount27 16N159 30W+Gettysburg Seamountseamount36 32N11 37W Geyer Bankbank27 49N93 04W Geyser Reefreef12 22S46 33E+Giacomini Seamountseamount56 25N146 25W&Gibbs Seamountseamount16 34N63 56W%Gibraltar Canyoncanyon36 09N5 24E%Gibraltar Valleyvalley35 55N4 49W(Gibson Seamountseamount52 00N148 40W-Gifford Tablemount tablemount26 45S159 25E! Giglio Basinbasin41 47N10 45E! Giglio Ridgeridge41 45N10 36E$Gilbert Canyoncanyon40 18N67 55W" Gilbert Ridgeridge1 00N173 00E)Gilbert Seamountseamount52 50N150 10W)Gilbert Seamountseamount42 50S164 00E+Gilbert Seamounts seamounts52 30N149 00W$ Gilg Seamountseamount6 52N21 54W(Gilliss Seamountseamount35 40N58 35W! Gira Canyoncanyon7 53S147 59E&Giraud Seamountseamount9 57S46 55E&Gisborne Canyoncanyon38 45S178 50E,Glomar Challenger Basinbasin77 45S180 00! Gloria Ridgeridge55 50N45 00W Glover Reefreef16 45N87 50W'Gluck Seamountseamount26 53N160 06W Goban Spurspur49 25N12 00W)Godaigo Seamountseamount41 52N170 35E$Godthab Valleyvalley63 30N52 30W0Gofar Fracture Zone fracture zone4 15S106 00W&Golden Gate Bankknoll23 04N110 18W0Goldsborough Seamounts seamounts10 30N169 00W*Golovnin Seamountseamount46 47N157 07E" Goodrich Bankreef10 44S130 18E&Goose Island Bankbank51 38N129 00W Gorda Bankbank15 45N082 25W! Gorda Basinbasin41 00N126 00W+Gorda Escarpment escarpment40 22N125 10W# Gorda Ridgesridges41 30N128 00W# Gorda Troughtrough22 50N109 22W# Gorda Valleyvalley39 52N125 05W(Gordon Seamountseamount46 50N135 04W$Gorontalo Basinbasin0 15S124 00E#Gorringe Ridgeridge36 40N11 35W)Gosanjo Seamountseamount32 55N171 35E-Goshirakawa Seamountseamount32 40N171 40E(Gosnold Seamountseamount38 08N62 17W  Goto Banksbanks33 10N128 25E(Gounod Seamountseamount27 53N161 12W(Graham Seamountseamount53 14N134 31W! Graham Shoalshoal37 10N12 43E! Grainger Bankreef7 47N110 28E&Grampian Troughtrough15 15S177 30E#Gran Cocal Reefreef6 00S176 15E Grand Bankbank45 00N50 00W0Grand Banks of Newfoundlandbanks45 00N53 00W&Grand Manan Banksbanks44 12N67 05W&Grand Manan Basinbasin44 25N66 30W$Granville Shoalshoal21 55N89 20W! Grappler Bankbank18 23N75 59W)Grappler Seamountseamount17 48N65 55W'Grattan Seamountseamount9 44S12 49W%Gray Feather Bankreef8 00N148 46E# Grays Canyoncanyon46 55N124 53W(Great Abaco Canyoncanyon27 05N77 00W%Great Bahama Bankbank23 15N78 00W)Great Bahama Canyoncanyon25 30N77 10W'Great Barrier Reefreef18 00S146 50E&Great Danger Bankreefs7 37N117 18E$Great Fisher Bankbank57 00N4 00E1Great Meteor Tablemount tablemount30 00N28 30W#Great Sea Reefreef16 15S178 33E#Great Sole Bankbank49 38N10 10W'Great Yangtze Bankbank31 45N123 30E+Greater Antilles Ridgeridge20 00N74 00W Green Bankbank45 45N53 35W" Green Canyoncanyon27 03N90 27W  Green Knollknoll27 00N90 18W'Green Seamountseamount19 18N154 12W#Greenland Basinbasin73 30N5 00W3Greenland Fracture Zone fracture zone75 30N0 30E#Greenland Plainplain75 00N3 00W&Greenland Troughtrough69 00N20 00W*Greenland-Iceland Riserise67 00N27 00W&Gregg Seamountseamount39 00N61 00W" Grenada Basinbasin13 30N62 00W" Grenada Plainplain13 30N62 00W%Grenell Canyoncanyon52 19N179 02E%Gridley Troughtrough16 30N163 15W'Grieg Seamountseamount27 51N162 03W"Grijalva Ridgeridge5 00S85 00W%Grindavikurdjupvalley63 25N22 30W&Groll Seamountseamount14 00S32 00W Grue Bankbank35 00S23 12E(Guacanayabo Troughtrough19 45N81 40W+Guadalupe Arrugadoarrugado28 50N117 35E+Guadalupe Seamountseamount27 50N168 45E0Guafo Fracture Zone fracture zone42 55S83 40W(Guardian Seamountseamount9 32N87 40W$Guatemala Basinbasin11 00N95 00W'Guayanilla Canyoncanyon17 45N66 46W# Guaymas Basinbasin27 15N111 30W! Guiana Basinbasin11 00N52 00W# Guide Canyoncanyon46 34N124 47W! Guide Ridgeridge52 22N150 35W'Guide Seamountseamount37 01N123 20W%Guilvinec Canyoncanyon46 44N5 15W Guinea Basinbasin0 00N5 00W0Guinea Fracture Zone fracture zone9 00N27 00W Guinea Plainplain1 00N3 00W$Guinea Plateauplateau9 45N17 30W Guinea Riserise8 00S0 00E-Gulden Draak Seamountseamount29 00S98 20E9 Gulf of Alaska Seamount Provinceprovince56 00N147 00W  Gully, Thecanyon44 15N59 15W)Gumdrop Seamountseamount37 27N123 28W! Gunnerus Bankbank68 00S33 00E#Gunnerus Ridgeridge66 30S33 45E&Gunston Hall Bankbank36 30N129 45E! Gusinaya Bankbank71 30N46 30E*Gustaf Adolf Troughtrough78 35N106 00W  Guy Canyoncanyon43 30N49 18W# Haast Canyoncanyon44 05S168 00E$ Habuto Canyoncanyon35 00N140 12E(Hadrian Seamountseamount40 26N11 42E$ Halawa Canyoncanyon21 12N156 43W&Haldimand Canyoncanyon44 00N57 58W#Half Moon Shoalreef8 51N116 16E)Hall Tablemount tablemount21 50S39 01E$Halmahera Basinbasin0 15S128 45E Halten Bankbank64 45N8 45E! Hamilton Bankbank54 00N54 45W.Hamilton Tablemount tablemount19 55N177 13E-Hammerstein Seamountseamount32 28N165 46W.Hammondsport Seamountseamount10 32S159 35E Hancock Bankreef1 04S90 13W! Hancock Bankbank32 34N119 42W)Hancock Seamountseamount30 15N178 30E Hand Shoalreef15 59N114 38E(Handel Seamountseamount27 26N159 53W Hanna Bankbank72 00N162 00W! Hanna Shoalshoal72 00N162 00W  Hannibal Bankbank7 25N82 05W Hardie Reefreef5 55N112 32E Hardy Bankbank35 15S22 50E" Hardy Patchesreef16 05N114 46E Hardy Reefreef10 08N116 08E! Harrie Guyotguyot5 35N172 17E#Harrington Hillhill31 21N77 34W(Harris Seamountseamount46 10N161 25W(Harris Seamountseamount84 00N140 00W*Harrison Seamountseamount12 40N167 55W Hart Reefreef10 48N119 52E" Hartog Ridgeridge30 30S105 00E,Hassayampa Seamountseamount15 18N163 29W! Hassler Reefreef54 49N131 37W%Hatteras Canyoncanyon34 40N74 00W#Hatteras Plainplain31 00N71 00W#Hatteras Ridgeridge33 45N72 50W! Hatton Ridgeridge59 00N17 30W)Hatton-Rockall Basinbasin57 30N16 30W%Hauraki Canyoncanyon35 20S175 35E# Havre Troughtrough31 30S179 30W" Hawaiian Archarch20 00N152 00W$Hawaiian Ridgeridge24 00N165 00W&Hawaiian Troughtrough21 00N155 00W# Hawke Canyoncanyon39 38S177 52E! Hawkins Reefreef10 18S167 22E" Hawley Ridgeridge51 00N176 15W$ Hayama Canyoncanyon35 13N139 28E# Haycock Basinbasin52 02N177 48E'Haydn Seamountseamount26 40N161 12W0Hayes Fracture Zone fracture zone33 40N38 30W Hayes Reefreef5 22N112 39E)Hazel Holme Bankseamount12 49S174 03E Heald Bankreef29 05N94 16W$ Heaphy Valleyvalley40 40S171 31E)Hebrides Seamountseamount56 27N10 22W$Hecataeus Knollknoll34 28N33 38E*Hecataeus Seamountseamount34 23N33 42E  Hecate Patchreef37 46N10 50E'Hecate Seamountseamount52 17N30 58W  Heceta Bankbank44 10N124 45W,Heceta Escarpment escarpment44 00N124 57W" Heceta Knollknoll55 40N135 19W$ Heceta Valleyvalley44 00N124 38W'Hecht Seamountseamount53 45N151 20W" Heck Canyoncanyon52 15N175 00E*Heck Seachannel seachannel49 12N128 52W& Heck Seamountseamount48 30N130 00W(Heel Tapper Canyoncanyon40 08N68 15W2Heezen Fracture Zone fracture zone53 00S135 00W%Heezen Plateauplateau38 23N70 48W  Helen Shoalreef19 12N113 54E(Helena Seamountseamount29 39N158 56E  Helene Shoalreef5 32N149 08E%Hellenic Troughtrough35 30N22 00E" Hemler Guyotguyot19 40N151 40E$Henderson Ridgeridge26 17N86 40W+Henderson Seamountseamount25 34N119 33W(Hendrickson Canyoncanyon39 07N72 31W'Henry Seamountseamount23 32N168 45E)Henselt Seamountseamount27 02N161 16W! Heradhsdjupvalley65 50N13 30W  Herald Bankbank70 30N171 30W! Herald Bankknoll15 44N112 14E  Herald Reefreef70 20N171 04W Herald Reefreef4 58N112 36E$ Herald Valleyvalley71 30N175 00W%Herbert Canyoncanyon53 25N170 40W'Herdman Seamountseamount45 15S0 30E'Herefordshire Shoalreef8 35N117 01E/Hero Fracture Zone fracture zone61 30S66 00W$Herodotus Basinbasin34 00N30 00E*Herodotus Seamountseamount33 35N19 56E"Herodotus Sillsill33 30N20 24E&Herodotus Troughtrough33 21N20 33E)Hess Escarpment escarpment15 05N75 50W Hess Riserise36 45N177 15E*Hess Tablemount tablemount17 50N174 15W" Heywood Shoalreef13 29S124 04E" Hibernia Reefreef12 00S123 23E4Higashi-goto Seachannels seachannels33 20N128 40E'Hikurangi Trenchtrench40 00S179 00E'Hinds Seamountseamount18 26N153 10W)Hinemoa Seamountseamount35 20S176 10W.Hirondelle II Seamountseamount36 26N11 50W%Hispaniola Basinbasin20 18N71 35W%Hispaniola Plainplain20 18N71 35W#Hitchfield Bankreef7 44N149 40E1Hjort Fracture Zone fracture zone62 00S163 00E'Hjort Seamountseamount56 30S159 00E# Hjort Trenchtrench58 00S157 30E" Hodges Knollknoll12 25N155 37W'Hodges Seamountseamount31 54N58 44W*Hodgkins Seamountseamount53 30N136 05W,Hodgkins Seamounts seamounts53 30N136 00W(Hodgson Seamountseamount35 35N58 40W*Hohnhaus Seamountseamount13 27N179 11W(Hohonu Seamountseamount19 11N154 41W& Hoke Seamountseamount32 06N126 56W&Hokitika Canyoncanyon42 20S169 45E" Hokkaido Riserise46 00N155 00E*Hokkaido Seamountseamount42 50N151 30E" Holmes Reefsreefs16 30S147 55E&Holothuria Banksreefs13 25S126 00E& Home Seamountseamount12 55S175 37W$ Honopu Canyoncanyon22 11N159 41W  Hook Ridgeridge51 30N143 40W%Hoopers Canyoncanyon46 06S171 00E" Hope Valleyvalley68 50N171 00W! Hopkins Reefreef10 52N116 15E Hopps Reefreef10 15N115 23E! Horizon Deepdeep23 16S174 44W# Horizon Ridgeridge14 49S106 05E-Horizon Tablemount tablemount19 40N168 30W'Hornafjardhardjupvalley63 40N14 54W%Hornsund Valleyvalley76 40N14 45E$Horseshoe Plainplain35 40N12 20W,Horseshoe Seamounts seamounts36 30N15 00W(Hotspur Seamountseamount17 55S35 55W2Hovgaard Fracture Zone fracture zone78 00N1 30E! Howard Shoalreef15 51N114 47E! Howell Basinbasin42 17N68 44W  Howell Hookridge25 45N84 15W  Howell Swellrise42 16N68 31W# Hoyles Canyoncanyon43 33N49 05W Hoyt Hillshills31 20N78 30W$ Hsin-i Canyoncanyon23 02N121 22E)Huddell Seamountseamount28 20N146 13W# Hudson Canyoncanyon39 27N72 12W Hudson Fanfan36 30N69 30W/Hudson Shelf Valley shelf valley40 05N73 30W# Hudson Valleyvalley38 28N70 57W%Hueneme Canyoncanyon34 06N119 14W#Humboldt Plainplain54 00S86 00W! Hunafloaallvalley66 20N20 40W)Hunkins Seamountseamount81 00N156 00W# Hunter Bankseamount9 58N138 16E Hunter Gapgap35 00S27 30W" Hunter Ridgeridge21 30S174 30E Hurd Bankbank35 55N14 50E" Hutchins Bankbank26 23N113 20W(Hydock Seamountseamount24 04N161 35E&Hydra Seamountseamount11 00S50 35E! Hydro Knollknoll52 12N176 49E)Hydrographer Canyoncanyon40 12N69 03W'Hyeres Seamountseamount31 30N29 00W# Hyuga Valleyvalley33 15N135 20E! Ianthe Reefsreefs5 53N145 39E" Iberian Basinbasin39 00N16 00W" Iberian Plainplain43 45N13 30W" Iceland Basinbasin61 00N19 00W&Iceland Plateauplateau69 30N12 00W%Ignacio Canyoncanyon25 30N109 30W(Iizuka Seamountseamount42 21N131 56W# Ikaria Troughtrough37 50N26 20E" Ikitsuki Bankbank33 36N129 04E Iligan Reefreef8 39N123 52E Iltis Bankreef16 46N112 13E.Imarssuak Seachannel seachannel57 15N44 00W&Inanudak Canyoncanyon54 00N168 55W.Inca Fracture Zone fracture zone1 30N85 15W)Independence Knollsknolls28 25N69 42W+Indian Cordillera cordillera10 00S66 00E.Indianapolis Seamountseamount19 38N156 42W2Indomed Fracture Zone fracture zone39 00S46 15E Indus Fanfan16 00N66 30E" Inga Canyoncanyon52 37N175 30E(Ingenstrem Troughtrough52 35N175 00E#Ingleses Banksbanks21 47N92 00W(Inharrime Terraceterrace25 20S34 48E.Inner Candelaria Canyoncanyon23 02N110 10W%Inner Gorda Bankreef23 02N109 31W# Inoko Canyoncanyon34 55N139 35E%Investigator Bankbank17 45N66 12W1Investigator Northeast Shoalshoal9 10N116 27E'Investigator Ridgeridge11 30S98 10E&Investigator Shoalreef8 09N114 44E"Invisible Bankreef11 10N93 28EIo Riserise52 00N150 00E! Ionian Basinbasin36 00N20 00E$Ireland Troughtrough55 00N12 40W*Ironwood Seamountseamount10 40N159 57W" Iroquois Reefreef10 39N116 10E  Irving Reefreef10 53N114 56E" Isabella Reefreef12 25S177 25W$Isafjardharjupvalley66 10N23 00W(Isakov Seamountseamount31 45N151 30E  Iselin Bankspur72 30S179 00W(Iselin Seamountseamount70 45S178 15W" Isfjordrennavalley78 05N12 00E7Islas Orcadas Fracture Zone fracture zone54 00S6 00E7Islas Orcadas Fracture Zone fracture zone54 00S6 00E&Islas Orcadas Riserise51 30S26 00W&Islas Orcadas Riserise51 30S26 00W! Isobel Shoalsreef3 52N112 47E&Issel Seamountseamount39 45N13 40E'Ita Mai Tai Guyotguyot12 30N157 10E*Iwabuchi Seamountseamount42 04N132 44W$Iwo Jima Ridgeridge30 00N139 30E! Izu Trenchtrench31 00N142 00E$J-Anomaly Ridgeridge40 30N51 00W$Jackman Canyoncanyon43 15N49 28W&Jacqueline Guyotguyot19 20N176 40E! Jacques Swellrise42 36N68 20W  Jadul Ridgeridge41 40N10 15E(Jaggar Seamountseamount19 23N157 00W Jagua Bankreef21 35N80 40W#Jagua, Banco dereef21 35N80 40W'Jaguar Seamountseamount21 50S39 27E  Jakkula Bankbank27 59N91 39W#Jamaican Plainplain15 30N79 00W! James Basinbasin51 00N177 30E# James Canyoncanyon50 51N177 12E! James Knollknoll51 00N177 12E James Patchreef4 30N119 12E3Jan Mayen Fracture Zone fracture zone71 12N8 00W#Jan Mayen Ridgeridge69 00N8 00W" Janga Canyoncanyon14 37S40 53E! Japan Basinbasin40 00N135 00E! Japan Plainplain41 30N135 00E# Japan Trenchtrench37 00N143 00E&Japanese Guyotsguyots32 30N148 30E'Jaseur Seamountseamount20 30S36 00W(Jasper Seamountseamount30 32N122 42W Java Reefreef7 50N118 34E Java Ridgeridge9 30S109 00E" Java Trenchtrench10 30S110 00E! Jeffreys Bankbank43 23N68 45W#Jeffreys Basinbasin43 06N70 10W#Jeffreys Ledgeridge43 00N70 03W%Jehangire Reefsreefs16 21N112 40E)Jenkins Seamountseamount30 20N173 41E'Jessie Beazley Reefreef9 02N119 49E$Jimmu Seamountguyot46 00N169 25E! Jingu Basinbasin39 30N172 00E$Jingu Seamountguyot38 50N171 15E'Jogashima Canyoncanyon35 06N139 32E! Johnson Patchreef7 47N111 35E,Johnston Seamounts seamounts16 00N169 30W" JOIDES Basinbasin74 30S174 00E Jokuldjupvalley64 10N24 10W" Jones Canyoncanyon39 27N71 56W'Jones Seamountseamount52 25N148 55W'Jones Seamountseamount43 33N132 35W! Jordan Basinbasin43 30N67 45W! Jordan Knollknoll23 32N83 48W*Josephine Seamountseamount36 40N14 15W*Jovellanos Seamountseamount44 32N4 12W*Juan de Fuca Canyoncanyon47 50N125 30W8Juan de Fuca Fracture Zone fracture zone47 00N133 00W(Juan de Fuca Ridgeridge46 00N130 00W(Jubilee Seamountseamount8 33N111 28E" Jukes Canyoncanyon43 16N52 01W Julia Shoalreef9 57N109 08E'Julianehab Valleyvalley60 20N46 55W'Justus Seamountseamount34 24N52 30W Jutland Bankbank56 50N7 20E(Kagami Seamountseamount45 29N140 37W$Kahutara Ridgeridge42 33S173 46E)Kaikata Seamountseamount26 40N141 00E&Kaikoura Canyoncanyon42 35S173 45E$ Kailiu Canyoncanyon22 15N159 37W" Kaiwhata Bankbank41 19S176 14E&Kalaniopuu Basinbasin25 00N178 00E&Kaluanui Canyoncanyon21 14N157 01W)Kamchatka Terraceterrace53 44N161 33E&Kamehameha Basinbasin16 04N163 00W Kami Reefreef32 50N128 40E$Kammu Seamountguyot32 10N173 00E&Kamogawa Canyoncanyon35 03N140 13E! Kamonga Shoalreef8 30N117 09E" Kanaga Basinbasin50 48N178 25W$ Kanaga Canyoncanyon51 13N178 00W/Kane Fracture Zone fracture zone23 30N45 00WKane Gapgap9 15N19 30W% Kane Seamountseamount21 08N28 02W,Kangerdlugssuaq Valleyvalley67 20N31 00W&Kangermio Canyoncanyon64 00N34 30W(Kapuskasing Saddlesaddle44 38N61 00W'Karin Seamountseamount17 55N168 58W&Karitane Canyoncanyon45 38S171 10E$ Karius Canyoncanyon51 09N178 58E-Kashima Tablemount tablemount35 45N142 38E%Katakai Canyoncanyon35 15N141 00E  Kaukau Bankbank41 34S175 30E&Kawainui Canyoncanyon21 13N156 48W Kay Knollknoll51 58N178 52E" Kayar Canyoncanyon14 57N17 14W%Keathley Canyoncanyon26 25N93 27W Keats Reefreef5 53N173 28E Keith Reefreef37 49N10 56E# Keller Canyoncanyon35 33N74 41W Kelso Reefreef24 10S159 30E'Kelvin Seamountseamount38 50N64 00W(Kepler Seamountseamount18 30N109 35W(Kerguelen Plateauplateau55 00S75 00E$Kermadec Ridgeridge30 30S178 30W&Kermadec Trenchtrench30 00S177 00W2Kermit Roosevelt Seamountseamount39 35N146 00W& Kern Seamountseamount32 33N166 00W'Kero Niuni Canyoncanyon11 35S40 42E# Kettle Canyoncanyon43 59N49 00W.Khachaturian Seamountseamount28 09N162 00W)Khayyam Seamountseamount14 17N107 02W(Kimmei Seamountseamount33 43N171 30E)Kinan Seamounts seamounts30 00N136 50E(King Arthur Canyoncanyon48 30N11 30W'King Island Shoalshoal65 00N168 06W)King Island Valleyvalley64 45N168 00W" Kingman Basinbasin8 30N167 30W" Kings Troughtrough43 48N22 00W"Kingston Shoalreef7 33N111 35E! Kiska Basinbasin51 07N176 33E! Kiska Knollknoll51 07N176 24E Kiska Spurspur51 18N176 24E,Kitty Hawk Seamountseamount10 08N111 15E% Kiwi Seamountseamount39 19N64 36W& Kiwi Seamountseamount30 47S173 52E# Klamath Ridgeridge41 10N129 35W! Knauss Knollknoll37 24N70 52W'Knights Terraceterrace35 02S175 10E#Knipovich Ridgeridge76 00N7 30E(Kodiak Seamountseamount56 52N149 15W*Kodiak Seamounts seamounts55 00N140 00W# Koko Seamountguyot35 15N171 35E)Kol'tso Seamountseamount40 30N132 20E%Kolbeinsey Ridgeridge69 00N17 30W  Kolff Shoalshoal7 00S136 50EKolluallvalley64 50N24 20W+Komahashi Seamountseamount28 05N134 40E1Komahashi-daini Seamountseamount29 53N133 19E)Komandorskaya Basinbasin57 00N168 00E%Kong Karls Basinbasin79 30N29 00E%Kongsfjordrennavalley79 00N10 00E%Koniuji Canyoncanyon52 15N175 17W'Kookoolik Valleyvalley64 10N169 55W Korai Reefreef33 07N128 43E&Korean Plateauplateau38 30N130 00E  Koro Basinbasin17 45S179 45E%Korovin Canyoncanyon52 45N174 05W/Kosciusko Tablemount tablemount10 18S179 43E Kossol Reefreef7 57N134 41E%Kottono Canyoncanyon34 52N140 04E*Kotzebue Seamountseamount41 20N146 20E Koyo Bankreef8 26N148 24E%Kozlova Canyoncanyon54 32N162 00E! Kozlova Spurspur54 16N162 16E)Kronotskaya Canyoncanyon54 00N160 37E'Krylov Seamountseamount17 35N30 07W# Krysi Canyoncanyon51 30N177 45E Kuga Bankbank32 55N128 30E! Kuril Basinbasin47 00N150 00E Kuril Gapgap46 15N152 00E! Kuril Ridgeridge47 00N152 00E# Kuril Trenchtrench47 00N155 00E%Kushiro Canyoncanyon42 20N145 00E'Kutuzov Seamountseamount15 13S8 19W%Kyuquot Canyoncanyon49 40N127 48W(Kyushu-Palau Ridgeridge20 00N136 00E$L'Espoir Ridgeridge33 00S101 30E#La Chapelle Bankbank47 37N7 18W&La Corun'a Canyoncanyon43 48N9 10W+La Corun'a Seamountseamount43 58N14 17W%La Cruz Canyoncanyon35 43N121 25W&La Jolla Canyoncanyon32 53N117 17W%La Orchila Basinbasin12 00N65 30W" La Paz Basinbasin24 30N110 10W$La Perouse Bankbank48 40N125 50W+La Perouse Seamountseamount19 39S54 09E'La Rochelle Canyoncanyon45 38N3 47W'La Spezia Terraceterrace43 35N9 45E'La Victoria Knollknoll32 05N117 50W#Labrador Basinbasin53 00N48 00W%Labrador Troughtrough55 00N56 30W+Lacaze-Duthiers Canyoncanyon42 28N3 28E" Lachlan Banksbank39 39S177 35E# Lachlan Ridgeridge39 30S177 50E)Lachlan Seamountseamount19 14S169 32W Ladd Reefreef8 40N111 40E& Ladd Seamountseamount28 32N176 40W#Lady Elgin Bankreef6 18N149 28E*Lagrange Seamountseamount17 18N110 55W LaHave Bankbank43 10N64 05W! LaHave Basinbasin43 45N63 45W)Lalla Rookh Bankseamount12 55S175 40W" Lamont Guyotguyot21 32N159 32E" Lamont Ridgeridge83 00N153 00W&Lancaster Troughtrough74 00N85 30W$Landes Plateauplateau44 08N2 42W" Langanesdjupvalley66 40N14 35W#Lansdowne Bankbank20 49S161 24E)Laplace Seamountseamount14 40N110 40W+Laskowski Seamountseamount51 50N144 45W#Lastres Canyoncanyon43 52N4 33W" Lasuen Knollknoll33 24N118 00W Lau Basinbasin20 00S177 00W Lau Ridgeridge21 00S178 30W!Laurentian Fanfan43 35N55 55W'Laurentian Troughtrough47 00N60 00W Lawson Reefreef8 46S140 46W%Lazarev Troughtrough65 35S130 00E  Le Cher Bankbank8 30S136 15E!Le Danois Bankbank44 05N4 52W%Le Trou sans Fondcanyon5 12N3 58W#Learmonth Bankbank54 25N133 05W$Learmonth Shoalreef15 42N114 40E%Leeuwin Canyoncanyon35 15S115 30E# Lefacor Knollknoll45 35N157 23W*Leibnitz Seamountseamount16 50N110 12W)Lena Tablemount tablemount53 00S45 00E! Lena Troughtrough83 00N10 00W$Leonard Canyoncanyon37 46N73 51W  Leslie Bankreef11 04N117 28E$Levantine Basinbasin33 00N29 00E Leven Bankreef12 30S47 50E+Lexington Seamountseamount13 00N111 00E! Ligeti Ridgeridge62 00N28 00W" Ligitan Reefsreefs4 15N118 31E$Ligurian Canyoncanyon43 45N8 35E! Lihou Reefsreefs17 25S151 40E)Lille Hellefiske Bankbank65 05N53 30W" Lilly Canyoncanyon44 52N49 00W  Linden Bankbank16 17S146 00E%Lindenkohl Basinbasin42 35N67 55W'Lindenkohl Canyoncanyon38 46N72 57W'Lindenkohl Knollsknolls42 30N67 39W&Lindenows Valleyvalley60 20N42 40W! Linosa Basinbasin35 50N13 10E% Lion Seamountseamount35 15N15 35W! Lipari Ridgeridge38 30N14 55E%Lipari Terraceterrace38 25N14 30E" Lisboa Canyoncanyon38 20N9 20W'Liszt Seamountseamount28 59N162 05W# Litke Canyoncanyon57 55N163 55E" Litke Troughtrough81 15N14 00E)Little Abaco Canyoncanyon26 41N76 45W*Little America Basinbasin77 30S162 00W'Little Bahama Bankreefs26 55N78 40W$Little Georgesshoals41 00N68 17W#Little Sole Bankbank48 30N8 45W,Little Stellwagen Basinbasin42 07N70 17W  Livock Reefreef10 11N115 19E! Lizzie Webberreef8 04N113 10E" Llanes Canyoncanyon43 40N4 23W%Llobregat Canyoncanyon41 16N2 11E  Lloyd Ridgeridge27 42N86 30W.Lobachevskiy Seamountseamount16 29N109 04W! Lofoten Basinbasin70 00N4 00E" Logan Canyoncanyon43 15N59 50W'Loihi Seamountseamount18 56N155 16W" Loma Canyoncanyon32 46N117 29W! Lombok Basinbasin9 50S116 00E%Lomonosov Ridgeridge88 00N140 00E! London Reefsreefs8 51N112 32E! Long Basintrough32 00N119 20W Long Fortiesbank57 00N0 30ELonsdjupvalley63 55N14 10W  Loon Shoalshoal70 35N149 08W(Lord Auckland Shoalreef10 20N117 17E%Lord Howe Basinbasin32 50S159 10E#Lord Howe Riserise32 00S162 00E-Lord Howe Seamounts seamounts28 00S159 00E Lorien Bankbank54 10N19 50W)Los Frailes Canyoncanyon23 22N109 20W%Los Roques Basinbasin12 20N66 30W)Lost Dutchmen Ridgeridge24 10S105 00E&Lost River Shoalshoal65 14N167 10W%Loudoun Canyoncanyon48 35N126 20W$Lougheed Basinbasin77 10N108 30W.Louis Agassiz Guyot tablemount17 52N178 12E! Louisa Bankknoll11 45S175 56E)Louisiade Plateauplateau12 30S158 00E&Louisville Ridgeridge31 00S172 30W,Louisville Seamountseamount31 15S172 15W" Loury Canyoncanyon56 26N22 00W" Lowrie Guyotguyot19 40N150 47E# Loyalty Basinbasin17 00S165 00E# Lucia Canyoncanyon35 58N122 00W! Lund Valleyvalley26 48N88 10W" Lurio Canyoncanyon13 29S40 36E#Lusitania Bankreef23 35N111 42W! Luzon Ridgeridge20 00N121 45E$Lydonia Canyoncanyon40 28N67 42W'Lyman Seamountseamount30 12N137 55W&Lynch Seamountseamount32 45N54 15W$Lynedoch Shoalshoal10 02S130 48E  Lynher Reefreef15 26S121 55E Lyra Basinbasin2 30N151 30E Lyra Reefreef1 50S153 35E! Lyra Troughtrough1 20S152 05E Lys Shoalreef11 19N114 35E$M. N. Hill Ridgeridge3 30S53 10E2Mabahiss Fracture Zone fracture zone2 45S68 00E$Macaloe Canyoncanyon11 55S40 40E  Macaw Bankknoll10 43S179 13W&Macclesfield Bankbank15 50N114 20E+Macdonald Seamountseamount29 01S140 17W  Macgowen Reefreef1 07S89 54W"Mackenzie Spotbank43 58N62 25W'Mackenzie Troughtrough69 52N138 10W(Macnab Seamountseamount45 11N135 42W  MacNeil Bankbank28 01N93 30W*Macomber Seamountseamount28 00N163 50E%Macquarie Ridgeridge57 00S159 00E'Macquarie Trenchtrench54 30S159 20E$Macunga Canyoncanyon11 10S40 47E%Madagascar Basinbasin27 00S53 00E)Madagascar Plateauplateau30 00S45 00E$Madalene Shoalsreefs3 54N112 58E" Madden Basinbasin40 28S177 00E$ Madden Canyoncanyon40 38S177 20E" Madeira Plainplain32 00N21 00W" Madeira Ridgeridge35 30N15 45W!Madingley Riserise4 15S61 00E! Maeander Reefreef8 05N119 18E Maeno Bankbank37 13N136 20E/Magdalena Escarpment escarpment23 30N112 00W  Magdalena Fanfan12 00N76 00W! Magellan Riserise7 20N177 00W,Magellan Seamounts seamounts17 30N152 00E)Magnaghi Seamountseamount39 55N11 45E Magpie Bankreef5 43N119 08E! Magpie Shoalreef16 03N114 13E'Maher Seamountseamount29 30N148 50W  Mahia Banksbank39 17S177 53E  Mahin Canyoncanyon6 00N4 25E(Mahler Seamountseamount31 46N164 58W'Maiko Seamountseamount34 02N145 55E% Maio Seamountseamount14 48N22 27W# Makar Canyoncanyon51 09N178 55E# Makarov Basinbasin87 00N170 00E)Makarov Seamountseamount29 30N153 30E#Makassar Basinbasin2 00S118 00E+Makhahnas Seamountseamount20 28N144 50E Malay Reefreef17 58S149 20E! Maldive Ridgeridge3 00N73 00E(Mallory Seamountseamount36 54S22 15E&Malloy Seamountseamount28 00S8 50E! Malpelo Ridgeridge3 50N81 13W*Malta Escarpment escarpment36 00N15 40E  Malta Ridgeridge35 00N17 30E Malta Riserise35 45N15 00E" Malta Troughtrough36 26N13 24E$Mameyes Canyoncanyon18 27N65 43W,Mammerickx Seamountseamount27 32N166 10E" Mangole Basinbasin1 30S126 20E%Mangsi Great Reefreef7 30N117 15E(Manihiki Plateauplateau11 00S164 00W Manila Reefreef7 03N148 57E$ Manila Trenchtrench14 30N119 05E! Manipa Basinbasin3 40S127 30E*Manning Seamounts seamounts38 10N60 40W&Manokwari Troughtrough0 10S132 20E  Manus Basinbasin3 35S150 00E,Mapmaker Seamounts seamounts25 00N165 00E*Mar del Plata Canyoncanyon37 40S53 40W"Marabout Shoalreef8 57N118 19E*Marchand Seamountseamount54 50N151 45W(Marchant Seamountseamount7 15N22 15W'Marchi Seamountseamount40 15N12 15E/Marcus-Wake Seamounts seamounts22 00N158 00E$Margesson Shoalreef15 55N114 38E*Margetts Seamountseamount14 33N112 08E)Maria Magdalena Riserise21 40N107 15W# Mariana Basinbasin17 30N145 00E# Mariana Ridgeridge17 00N146 00E%Mariana Trenchtrench15 00N147 30E%Mariana Troughtrough19 00N144 00E,Marie Byrd Seamountseamount70 00S118 00W8Marie Celeste Fracture Zone fracture zone17 30S66 00E&Marie Louise Bankreef11 56N116 53E Marie Reefreef10 55S130 06E Marie Shoalreef3 41N112 48E)Marietta Seamountseamount57 02N28 41W! Marion Reefreefs19 10S152 17E"Mariveles Reefreef7 59N113 50E$Markham Canyoncanyon6 45S147 00E$Marmara Troughtrough40 50N28 30E Maro Reefreef25 25N170 35W4Marquesas Fracture Zone fracture zone9 15S128 30W(Marsala Seamountseamount33 53N34 17W%Marseille Canyoncanyon43 00N5 04E*Marshall Seamountseamount11 50N165 00W,Marshall Seamounts seamounts10 00N165 00E  Marvin Spurspur86 00N110 00W*Maryland Seamountseamount15 50N160 00W$Mascarene Basinbasin15 00S56 00E$Mascarene Plainplain19 00S52 00E(Mascarene Plateauplateau10 00S60 00E# Mason Canyoncanyon46 57S167 20E2Mathematicians Seamounts seamounts15 00N111 00W" Matheson Bankbank43 55S179 18W$Matinicus Basinbasin43 35N68 20W Matsu Bankbank36 20N135 56E  Matsuye Bankreef8 01N148 01E%Mattole Canyoncanyon40 17N124 27W Maud Riserise66 00S3 00E$ Maud Seamountseamount65 00S2 35E)Maurice Ewing Bankplateau51 00S43 00W'Mauritania Canyoncanyon16 50N16 50W&Mauritius Trenchtrench23 30S55 30E*Maury Seachannel seachannel56 33N24 00W Mavis Reefreef15 32S123 40E  Mawson Bankbank73 30S174 00E$Mazatlan Basinbasin22 45N108 10W"McAlinden Spurspur29 15N77 07W&McAlinden Valleyvalley29 03N77 07W" McArthur Reefreef52 04N177 52E(McCall Seamountseamount18 45N157 05W'McDougall Troughtrough52 30S161 00E'McGowan Seamountseamount8 24N20 40W  McGrail Bankbank27 58N92 36W*McKernan Seamountseamount42 20N141 06W*McKinley Seamountseamount29 30N137 15W#McLaughlin Bankreef9 07N148 06E McLeod Bankreef10 00S50 27E)McManus Seamountseamount42 12N139 08W&McNish Seamountseamount40 05S8 25W$Mebuisi Canyoncanyon10 36S40 42E Medina Bankbank34 50N15 10E&Medina Seamountseamount3 17N88 18W(Mediterranean Ridgeridge34 00N23 00E%Medjumbe Canyoncanyon11 45S40 42E(Mednyy Seamountseamount55 25N167 17E& Meiji Guyot tablemount53 05N165 00E%Melanesian Basinbasin0 05N160 35E! Mellish Riserise17 00S156 00E)Mellish Seamountseamount34 00N178 15E(Melmoore Seamountseamount6 06N24 52W! Melville Bankbank38 29S46 46E3Melville Fracture Zone fracture zone30 30S60 40E&Melville Troughtrough74 00N108 30W" Memba Canyoncanyon14 08S40 40E  Memnon Shoalreef7 28N118 25E2Menard Fracture Zone fracture zone50 00S120 00W(Menard Seamountseamount42 12N134 15W3Mendan'a Fracture Zone fracture zone16 00S91 00W&Mendeleyev Plainplain81 00N170 00W&Mendeleyev Ridgeridge80 00N178 00W# Mendell Knollknoll50 42N157 12W-Mendelssohn Seamountseamount25 10N161 39W'Mendocino Canyoncanyon40 22N124 27W/Mendocino Escarpment escarpment40 00N140 00W5Mendocino Fracture Zone fracture zone40 00N145 00W%Mendocino Ridgeridge40 22N127 30W  Mendoza Riserise20 10S94 20W(Mendoza Seamountseamount9 30N107 14W"Mentawai Basinbasin1 30S99 30E"Mentawai Ridgeridge1 00S99 40E%Mentawai Troughtrough4 00S101 30E! Menzies Reefreef11 09N114 49E" Mera Canyoncanyon34 52N139 42E$Mercator Basinbasin33 00N165 00W$Mergui Terraceterrace9 00N96 45E'Meriadzek Terraceterrace47 30N8 30W! Meridian Reefreef4 38N119 17E'Merlin Seamountseamount9 05S150 44W  Mernoo Bankbank43 18S175 20E  Merriam Spurspur25 00S82 30W*Mertz Ninnis Valleyvalley67 25S146 00E$ Merz Seamountseamount48 30S5 30E)Mesyatsev Seamountseamount72 30N0 30W Meteor Riserise46 00S5 30E&Meteor Seamountseamount48 00S8 30E$Metundo Canyoncanyon11 05S40 45E$Mexican Ridgesridges22 30N96 10W! Mexico Basinbasin25 00N92 00W  Mey Canyoncanyon39 07N72 26W$ MGU Seamountseamount12 20N61 15E$ MGU Seamountseamount12 20N61 15E! Miami Guyotguyot21 40N161 55E$ Miami Terraceterrace25 45N79 55W(Michael Seamountseamount36 22N58 21W$Michaelmas Reefreef16 35S146 02E%Michelson Ridgeridge25 48N146 45E+Mid-Atlantic Ridge cordillera0 00N20 00W%Mid-Indian Basinbasin10 00S80 00E%Mid-Indian Ridgeridge12 00S66 00E/Mid-Pacific Mountains seamounts20 00N178 00E+Middle America Trenchtrench15 00N95 00W! Middle Armcanyon41 27S174 46E Middle Bankbank44 30N60 35W$ Middle Canyoncanyon58 37N176 45W Middle Reefreef4 30N119 15E  Middle Reefreef51 58N176 03E  Middle Shoalreef9 59N118 26E(Middle Toms Canyoncanyon39 00N72 37W%Middleton Basinbasin27 00S158 40E1Miklukho-Maklaya Seamountseamount8 28N140 54E(Mill Creek Canyoncanyon35 58N121 35W(Miller Seamountseamount53 30N144 20W'Milne Seamountsseamount44 30N39 30W-Milwaukee Seamounts seamounts32 28N171 55E/Minami-Kasuga Seamountseamount21 36N143 38E(Minerva Seamountseamount17 05S37 25W" Minerva Shoalreef20 50S159 20E! Minerve Reefreef22 45S133 35W&Minia Seamountseamount53 02N34 51W&Minneapolis Ridgeridge5 25N158 00W,Minnetonka Seamountseamount48 05N168 30E Minto Reefreef8 08N154 15E  Misaine Bankbank45 15N58 40W  Misaki Bankbank35 03N139 29E$ Misaki Canyoncanyon35 08N139 30E! Mischief Reefreef9 51N115 32E(Mississippi Canyoncanyon28 30N89 45W"Mississippi Fanfan26 45N88 30W&Mississippi Slopeslope27 45N89 50W.Mississippi-Alabama Shelfshelf29 40N88 10W#Misteriosa Bankreef18 50N83 50W-Mitchell Escarpment escarpment23 54N82 10W Miura Bankbank35 06N139 27E# Miura Canyoncanyon35 10N139 28E$Mocambo Canyoncanyon15 10S40 45E0Mocha Fracture Zone fracture zone40 00S77 45W'Moctezuma Troughtrough16 30N107 10W Mogami Bankreef8 30N148 45E$ Mogami Troughtrough39 00N139 00E Mohns Ridgeridge72 30N5 00E# Mokio Canyoncanyon21 17N157 13W(Molloy Seamountseamount83 58N105 10E-Molodezhnaya Seamountseamount15 11N50 11W3Molokai Fracture Zone fracture zone23 00N148 00W! Mona Canyoncanyon19 00N67 23W$Monmouth Shoalsreefs6 43N118 08E Mono Riserise12 00N80 00W)Monsoon Seamountseamount14 20N163 02W)Montague Seamountseamount20 25S36 42W(Montecristo Troughtrough41 40N10 17E&Montepuez Canyoncanyon12 33S40 40E&Monterey Canyoncanyon36 40N122 05W  Monterey Fanfan36 00N123 25W,Monticello Seamountseamount11 30N160 03W Moody Reefreef5 37N112 22E,Moonless Mountains seamounts30 40N140 00W Moore Bankbank26 06N113 26W! Moore Reefsreefs16 00S149 15E! Moore Ridgeridge20 40S177 20E'Moore Seamountseamount48 53N136 00W# Morant Troughtrough18 05N75 30W-Moresby Seachannel seachannel50 18N133 00W%Moresby Valleyvalley10 45S146 45E)Moreton Seamountseamount26 10S154 50E  Morgan Bankbank23 28N111 10W" Morotai Basinbasin3 00N128 00E)Morozko Seamountseamount45 10N158 15E%Morris Jesup Riserise83 45N20 00W(Morton Seamountseamount50 15N142 45W'Moser Seamountseamount49 29N136 55W Moses Reefreef22 50S151 15W Motagua Fanfan17 30N85 30W" Motukura Bankbank40 00S177 22E" Mouchoir Bankreefs20 57N70 42W  Moyune Shoalreef8 02N118 08E/Mozambique Escarpment escarpment33 00S36 30E)Mozambique Plateauplateau32 00S35 00E(Mozart Seamountseamount28 40N161 43W&Mucalanga Canyoncanyon15 35S40 37E$Muertos Troughtrough17 12N66 30W! Mugia Canyoncanyon43 00N9 45W" Mugu Canyoncanyon34 03N119 05W% Muir Seamountseamount33 41N62 30W"Muirfield Reefreef13 13S96 05E# Munson Canyoncanyon40 38N67 02W)Murchison Seamountseamount7 54N21 00W! Murmansk Riserise75 00N37 00E Murr Basinbasin44 32N67 15W Murr Ledgesreef44 30N66 50W! Murray Basinbasin42 30N69 50W" Murray Basinbasin51 37N176 27E$ Murray Canyoncanyon51 30N176 50E2Murray Fracture Zone fracture zone34 00N135 00W! Murray Ridgeridge21 45N61 50E(Murray Seamountseamount54 00N148 30W  Murray Spurspur51 45N176 30E# Musashi Banksbanks44 45N140 10E-Musicians Seamounts seamounts31 00N162 00W! Mussau Ridgeridge1 15N149 10E# Mussau Trenchtrench1 00N148 30E,Mussorgsky Seamountseamount30 22N163 50W(Mytilus Seamountseamount39 22N67 09W$Nadeshda Basinbasin30 00N148 00E" Nagahira Bankbank37 20N136 20E(Nagata Seamountseamount12 34N167 01W(Naifeh Seamountseamount26 54N168 08W# Naiwa Canyoncanyon21 14N157 04W  Nakano Bankbank37 34N136 28E+Nakwe Seachannel seachannel37 00N149 30E$Namaete Canyoncanyon15 44S40 34E(Namaqua Seamountseamount31 30S11 20E$ Nankai Troughtrough32 10N135 00E#Nanortalik Bankbank60 14N46 20W! Nansen Basinbasin84 30N75 00E+Nansen Cordillera cordillera87 00N90 00E Nansen Reefreef54 16S36 09W&Nantucket Canyoncanyon39 50N69 55W&Nantucket Shoalsshoals41 11N69 48W(Napier Seamountseamount15 45N110 48W Nares Bankbank11 25N116 07E  Nares Basinbasin23 30N63 00W  Nares Plainplain23 30N63 00W*Nashville Seamountseamount35 00N57 20W  Natal Basinbasin30 00S40 00E&Natal Seamountseamount37 15S22 15E" Natal Valleyvalley31 00S33 15E7Naturaliste Fracture Zone fracture zone33 00S107 35E+Naturaliste Plateauplateau34 00S111 15E)Naugler Seamountseamount25 42N168 43E  Nautilus Gapgap78 30N157 30W%Navarin Canyoncanyon60 30N179 45E%Navarro Canyoncanyon39 05N124 07W" Navassa Knollknoll18 23N74 56W& Navidad Bank tablemount20 00N68 50W" Navy Bankseamount32 17N117 33W" Nazare Canyoncanyon39 36N9 20W! Nazareth Bankbank14 30S60 45E  Nazca Ridgeridge22 00S82 00W" Necker Ridgeridge22 00N167 15W" Neddick Basinbasin42 57N70 15W" Neiba Valleyvalley17 45N70 36W! Neilson Reefreef27 01S146 02W' Nelson Guyot tablemount27 50N145 45E# Neptuna Banksreefs16 30N112 31E  Nerita Patchbank37 04N12 50E& Nero Seamountseamount27 57N177 58W(Nerpich'ye Canyoncanyon55 48N162 42E$Nerpich'ye Spurspur55 48N163 07E  Neva Shoalshoal26 00N173 55W-Nevel'skoye Seamountseamount45 30N147 30E(New Britain Trenchtrench6 00S153 00E)New Caledonia Basinbasin30 00S165 00E.New England Seamounts seamounts38 00N61 00W%New Guinea Basinbasin3 30S146 00E'New Guinea Trenchtrench0 05N135 50E(New Hebrides Ridgeridge17 00S168 30E*New Hebrides Trenchtrench22 30S170 00E(Newell Seamountseamount16 50N154 45W'Newfoundland Basinbasin45 00N40 00W'Newfoundland Plainplain42 00N45 00W'Newfoundland Ridgeridge40 30N48 00W/Newfoundland Seamounts seamounts43 45N45 00W*Newhouse Seamountseamount24 35N163 16E%Newport Canyoncanyon33 35N117 55W%Newport Valleyvalley44 35N125 08W(Newton Seamountseamount16 05N111 35W Nias Basinbasin1 00N98 15E#Nicaraguan Riserise16 00N80 00W)Nicholas Seamountseamount9 43N161 07W)Nichols Seamountseamount42 50N133 13W*Nicobar-Simuelue Basinbasin4 00N94 30E! Nidever Bankbank33 15N119 49W,Nierenberg Seamountseamount44 19N142 07W Niger Fanfan4 15N5 00E$ Niglik Valleyvalley70 25N131 32W'Nikitin Seamountseamount3 00S83 00E Nil Canyoncanyon36 54N5 58ENile Fanfan33 00N31 00E$Ninetyeast Ridgeridge4 00S90 00E(Ninigi Seamountseamount41 44N170 13E&Ninomiya Canyoncanyon35 15N139 15E# Nintoku Basinbasin40 00N168 00E&Nintoku Seamountguyot41 00N170 40E&Niobe Seamountseamount16 20N84 57W Nishi Reefreef32 50N128 38E2Nishi-goto Seachannels seachannels32 45N128 00E'Nishinotoro Banksbanks37 25N136 25E%Nitinat Canyoncanyon48 08N125 50W Nitinat Fanfan47 55N127 00W" Niuni Canyoncanyon11 13S40 45E'Noirmoutier Canyoncanyon46 00N4 15W% Nola Seamountseamount17 14N25 32W(Nordenskjold Basinbasin76 03S165 00E'Nordhfjardhardjupvalley65 08N12 30W$Norfolk Canyoncanyon37 04N74 40W# Norfolk Ridgeridge29 00S168 00E  Norman Reefreef16 26S146 00E! Normanby Bankreef5 49N119 13E(Norrie Seamountseamount32 21S166 06E*North Aleutian Slopeslope52 30N175 00W)North American Basinbasin30 00N60 00W,North Australian Basinbasin14 30S116 30E&North Banda Basinbasin3 30S124 30E North Bankbank52 00N129 55W.North Charcot Seamountseamount45 07N13 00W&North Danger Reefreef11 28N114 20E&North Fiji Basinbasin16 00S174 00E(North Heyes Canyoncanyon38 15N73 32W  North Hindershoal51 38N2 34E-North Honeycomb Canyoncanyon41 25S175 53E#North Kenya Bankbank2 52S40 50E)North Luconia Shoalsreefs5 40N112 35E&North Madden Bankbank40 20S177 11E(North Magellan Riserise13 00N177 30W)North Makassar Basinbasin1 00S118 30E'North Maria Ridgeridge33 52S172 08E0North New Hebrides Trenchtrench13 00S166 00E#North Oki Bankbank38 00N133 45E North Reefreef11 28N114 23E&North Regent Shoalreef8 38N117 05E+North Seachannel seachannel45 45S172 35E*North Solomon Troughtrough7 00S159 30E0North Tasman Seamounts seamounts33 15S156 00E*North Tokelau Troughtrough4 30S167 30W(North Trinco Canyoncanyon8 52N81 25E'North Vereker Bankbank21 06N116 00E(North Yamato Ridgeridge39 55N133 50E-Northampton Seamountseamount11 35N168 28W/Northampton Seamounts seamounts25 20N172 04W)Northeast Bank tablemount32 20N119 40W*Northeast Cape Shoalshoal63 20N168 30W-Northeast Pacific Basinbasin20 00N140 00W2Northern Holiday Seamountseamount29 33N147 45W'Northern Shelvesshelves23 23N88 42W! Northern Spurspur44 08N60 48W+Northern Viti Canyoncanyon39 00S172 30E=#Northwest Atlantic Mid-Ocean Canyon seachannel54 00N48 00W+Northwest Bellona Reefreef20 48S158 29E,Northwest Danger Shoalsreefs7 41N117 16E.Northwest Dellwood Knollknoll50 53N130 35W.Northwest Hawaiian Ridgeridge33 00N175 18W-Northwest Pacific Basinbasin40 00N155 00E)Northwest Ramos Shoalreef8 07N116 57E$Northwest Slopeslope26 45N95 40W/Northwind Escarpment escarpment76 30N155 00W%Northwind Plainplain76 00N161 00W%Northwind Ridgeridge75 00N158 00W$Northwind Shoalshoal79 07N15 30W" Norton Plainplain63 54N168 00W#Norwegian Basinbasin68 00N2 00W%Norwegian Trenchtrough59 00N4 30E'Nouakchott Canyoncanyon18 03N16 30W$ Nova Bank tablemount23 00S159 00E! Nova Troughtrough2 30S173 00W# Noyes Canyoncanyon55 10N134 22W" Noyo Canyoncanyon39 31N124 20W Nuevo Bankbank20 33N91 50W Nuevo Reefreef21 49N92 05W# Nygren Canyoncanyon40 39N66 30WO Bankbank36 24N136 00E)O'Brian Seamountseamount29 11N175 38E Oates Bankbank70 15S165 00E# Oates Canyoncanyon68 00S164 30EOb' Bankbank81 00N10 00W(Ob' Tablemount tablemount52 30S42 30E  Ob' Trenchtrench33 00S98 00E'Obispo Norte Shoalshoal20 30N92 12W%Obispo Sur Shoalshoal20 27N92 14W" Obruchev Riserise52 30N166 00E*Obruchev Seamountseamount47 10N150 45E*Oceanographer Canyoncanyon40 30N68 10W8Oceanographer Fracture Zone fracture zone35 00N35 00W)Odessey Seamountseamount54 30N149 45W  Odet Canyoncanyon46 40N5 08W Oga Basinbasin39 33N139 36E! Ogamuko Bankbank39 51N139 34E)Ogasawara Plateauplateau26 00N144 00E'Ogasawara Troughtrough28 00N141 20E$ Oglala Canyoncanyon51 42N179 25E(Oglala Seamountseamount50 18N131 28W&Ogotoruk Valleyvalley68 00N165 50W Ojin Riserise38 00N167 30E# Ojin Seamountguyot38 00N170 30E# Okhotsk Basinbasin53 00N148 00E# Okhotsk Plainplain52 00N149 00E%Okhotsk Valleyvalley50 35N155 00EOki Bankbank37 00N133 00E Oki Ridgeridge37 00N135 00E! Oki Troughtrough37 00N135 30E%Oki-Daito Ridgeridge23 50N133 00E%Okinawa Troughtrough25 30N125 00E Okino Bankbank37 16N136 18E#Okinoyama Bankbank34 58N139 35E# Okmuk Canyoncanyon53 50N169 21W$ Olbia Terraceterrace41 05N10 20E Olga Basinbasin78 20N29 00E! Oliver Shoalreef16 06N114 28E Oman Basinbasin23 20N63 00E Oman Plainplain23 00N61 00E Ona Basinbasin59 00S56 00W$Ontong Java Riserise1 00N157 00E Onyx Reefreef16 26S146 04E%Opouawe Canyoncanyon41 45S175 23E,Orairuguron Seamountseamount7 14N146 07E#Oraitilipu Bankreef8 03N147 15E# Orange Canyoncanyon32 00S12 25E Orange Fanfan32 00S12 00E Orca Basinbasin26 55N91 20W Oreti Bankbank46 32S168 05E! Orleana Shoalreef7 42N111 45E(Ormonde Seamountseamount36 40N11 10W  Ormsbee Reefreef0 36N129 57E#Oropesa Canyoncanyon40 10N1 19E" Orosei Canyoncanyon40 12N9 54E'Orosei Seamountseamount39 42N10 39E%Orosei Terraceterrace40 00N11 00E2Orozco Fracture Zone fracture zone15 30N104 30W! Orphan Knollknoll50 23N46 24W! Orphelin Bankbank48 18N63 11W4Ortelius Fracture Zone fracture zone27 30N165 00E! Osborn Bankknoll33 22N119 02W%Osborn Plateauplateau14 45S87 00E(Oshawa Seamountseamount52 22N134 05W)Ostenso Seamountseamount84 00N120 00W+Ostrovnoy Seamountseamount41 55N134 00E'Ououkinsh Canyoncanyon50 00N128 00W$ Outer Baileyseamount60 27N12 30W.Outer Candelaria Canyoncanyon23 00N110 15W%Outer Gorda Bankbank23 01N109 28W Outer Shoalreef7 02N117 00E Owen Bankbank6 47S70 14E Owen Basinbasin44 50N66 45W/Owen Fracture Zone fracture zone12 00N58 00E Owen Shoalreef8 09N111 58E  Oyster Reefreef16 38S145 56E+Ozbourn Seamount tablemount26 00S174 50W! Ozernoy Spurspur57 40N163 40E-Pacific-Antarctic Ridgeridge62 00S157 00W Padang Bankreef4 02N117 56E*Paganini Seamountseamount28 41N162 40W$ Pahaoa Canyoncanyon41 35S175 45E(Paisley Seamountseamount14 05S41 30E" Palau Trenchtrench6 30N134 30E$Palawan Troughtrough7 00N115 00E" Palermo Basinbasin38 20N13 35E# Palliser Armcanyon41 44S175 05E$ Palmas Canyoncanyon23 45N109 35W! Palmer Ridgeridge42 51N20 00W(Palmer Seamountseamount18 38N156 35W$Pamlico Canyoncanyon34 20N74 33W" Pamplona Spurspur59 30N142 30W  Panama Basinbasin5 00N83 30W0Panama Fracture Zone fracture zone4 00N82 45W! Panama Plainplain11 00N79 00W" Pandora Bankknoll12 11S172 05E" Pandora Bankshoal34 35S172 35E&Pantelleria Basinbasin36 33N12 23E&Pantelleria Shoalshoal37 10N12 05E*Panulirus Seamountseamount38 28N64 50W*Panzarini Seamountseamount40 00S11 45E%Papanui Canyoncanyon45 53S171 05E)Papatua Seamountseamount02 08N124 54E'Papau Seamountseamount19 07N155 16W% Papp Seamountseamount26 00N20 20W! Papua Plainplain14 00S151 30E% Papua Plateauplateau11 00S148 15E'Paraiba Seamountseamount7 30S33 25W)Paramount Seamountseamount3 20N90 45W*Parengarenga Canyoncanyon34 30S173 24E Parker Bankbank27 58N92 02W! Parker Ridgeridge42 43N68 51W(Parker Seamountseamount30 38N162 11W(Parker Seamountseamount52 35N151 15W'Parks Seamountseamount44 14N129 56W"Parnaiba Ridgeridge2 00S37 00W  Parry Shoalreef15 29N113 50E(Partington Canyoncanyon36 08N121 45W(Pascal Seamountseamount15 49N111 15W# Pasco Bankseamount13 05S174 25W Pasig Shoalreef9 54N119 30E$ Pasley Canyoncanyon34 30S124 15E Patch, Thebank44 15N62 20W  Patella Bankbank37 09N13 22E$Pathfinder Reefreef16 31N143 08E,Pathfinder Seamountseamount50 55N143 15W"Patricia Shoalreef3 38N113 03E" Patti Canyoncanyon38 49N15 24E,Patton Escarpment escarpment32 30N120 00W" Patton Ridgeridge33 30N120 30W(Patton Seamountseamount54 40N150 30W*Patton Seamounts seamounts54 20N149 30W'Paul Revere Ridgeridge50 05N129 30W& Paul Seamountseamount23 26N172 36W(Pavlov Seamountseamount50 40N162 00E Payne Rockreef4 34N119 13E  Payne Shoalreef15 52N114 34EPaz Bankbank21 15N79 48W" Peake Troughtrough43 03N20 12W Pearl Bankbank5 49N119 42E  Pearson Reefreef8 58N113 40E" Peary Troughtrough79 20N98 30W*Pedro Escarpment escarpment15 45N78 40W%Pegasus Canyoncanyon43 15S173 40E  Pegasus Reefreef5 46N118 50E(Peirce Seamountseamount53 44N136 32W&Pelekunu Canyoncanyon21 13N156 54W! Pelorus Reefreef22 50S176 28W*Pelsaert Seamountseamount31 14S108 50E.Pendragon Escarpment escarpment49 00N13 00W! Penguin Bankbank21 02N157 30W" Penguin Bankknoll11 29S175 29E! Penguin Reefreef15 39N113 44E# Penguin Ridgeridge11 40S176 00E%Peniscola Canyoncanyon40 19N1 20E%Penmarc'h Canyoncanyon46 57N5 40W%Pennant Canyoncanyon51 55N175 05E%Pennant Troughtrough52 05N175 30E! Pennell Bankbank74 30S179 59E,Pennsylvania North Reefreef10 48N116 51E" Penrhyn Basinbasin7 30S156 15W+Pensacola Seamountseamount18 17N157 20W Pera Bankbank20 43N91 55W$Pernambuco Plainplain7 30S27 00W(Pernambuco Plateauplateau8 10S34 15W/Pernambuco Seachannel seachannel12 00S33 15W,Pernambuco Seamounts seamounts8 30S31 40W" Perpetua Bankbank44 17N124 40W(Perret Seamountseamount19 28N157 19W Persey Riserise77 45N36 00E! Perth Basinbasin28 30S110 00E# Perth Canyoncanyon31 50S114 30E! Perth Plainplain28 30S110 00E Peru Basinbasin15 00S85 00W'Peru-Chile Trenchtrench20 00S73 00W'Pervenets Canyoncanyon59 30N178 00W'Pescadero Canyoncanyon23 48N109 36W'Pescadero Troughtrough24 00N108 50W'Petacalco Canyoncanyon17 30N102 00W$ Peters Canyoncanyon52 30N176 04E" Peters Ridgeridge50 33N137 30W" Petersen Bankbank65 45S109 55E  Petley Reefreef10 24N114 34E.Petr Velikiy Seamountseamount42 00N132 15E  Petrel Bankbank52 10N179 50E  Petrel Bankbank24 40N112 50W  Petrel Spurspur52 30N179 45W  Phelps Bankshoal40 50N69 20W&Philippine Basinbasin17 00N132 00E'Philippine Trenchtrench9 00N127 00E#Phillips Shoalreef15 51N114 25E  Phleger Bankbank27 50N91 54W$Phoenix Canyoncanyon37 50N73 44W# Phoenix Ridgeridge41 06N127 42W*Phoenix Seamounts seamounts4 00S173 00W%Phoenix Troughtrough41 00N128 10W)Physalia Seamountseamount39 51N66 57W-Pickersgill Seamountseamount46 43S161 44E'Picket Seamountseamount39 38N65 58W Pickle Reefreef20 24N80 29W'Pickle Seamountseamount20 28N80 28W/Pico Fracture Zone fracture zone38 05N34 45W%Pigafetta Basinbasin20 30N153 00E Pigeon Reefreef8 52N114 38E# Pilgrim Banksbanks33 44N119 10W  Pillar Bankbank52 03N177 14E" Pillar Basinbasin52 02N177 21E)Pillsbury Seamountseamount0 25N17 00W%Pin'ones Canyoncanyon18 28N65 57W(Pinar del Rio Knollknoll23 10N84 45W# Pining Canyoncanyon61 40N40 00W&Pinne Marine Patchbank37 06N13 08E Pinta Bankbank0 45N90 44W%Pioneer Canyoncanyon37 17N123 15W-Pioneer Escarpment escarpment38 40N128 10W3Pioneer Fracture Zone fracture zone38 30N135 00W# Pioneer Ridgeridge38 45N128 00W)Pioneer Seamountseamount37 21N123 25W-Pioneer Tablemount tablemount26 00N173 26W Pixie Reefreef16 33S145 52E*Plantagenet Bank tablemount31 59N65 11W)Plateau de Rochebonnereefs46 12N2 27W&Plato Seamountseamount33 10N29 30W Platts Bankbank43 09N69 37W! Platts Basinbasin43 25N69 20W&Pliny Seamountseamount39 15N14 23E" Pliny Trenchtrench34 40N25 30E! Plover Shoalreef15 36N114 28E%Pochnoi Canyoncanyon52 00N179 30W%Pochnoi Troughtrough51 42N179 50W'Pocklington Ridgeridge11 00S155 00E)Pocklington Troughtrough11 40S155 30E'Podvodnikov Basinbasin80 30N168 00E*Poincare Seamountseamount15 15N111 20W%Pokatyy Canyoncanyon56 53N163 08E Pole Plainplain89 00N45 00E)Policastro Terraceterrace39 52N15 33E' Pollux Guyot tablemount25 45N147 50E,Ponza Salerno Terraceterrace40 35N13 50E# Popcorn Ridgeridge29 26N117 40W"Porcupine Bankbank53 20N13 30W$Porcupine Plainplain49 00N16 00W(Porcupine Seabighttongue50 00N13 00W#Porpoise Basinbasin43 05N70 10W$Porpoise Basinbasin66 10S128 30E+Port Clarence Valleyvalley65 23N167 30W" Portland Reefreef23 41S134 30W" Portlock Bankbank58 20N150 30W#Portlock Reefsreefs9 32S144 49E&Porto Seamountseamount40 40N10 00W*Poseidone Seamountseamount39 40N13 50E%Pothorst Canyoncanyon60 00N40 30W.Pourtales Escarpment escarpment24 15N81 45W(Pourtales Terraceterrace24 25N81 00W'Poverty Canyonscanyons39 00S178 15E! Powell Basinbasin62 15S49 30W# Powell Canyoncanyon40 20N67 22W(Powers Seamountseamount19 37N158 55W& Poyo Seamountseamount19 13N142 32E! Pratt Basinbasin51 55N178 50E'Pratt Seamountseamount56 10N142 30W3President Jackson Seamountseamount42 33N127 48W.President Thiers Bankseamount24 39S145 51W" Prestrud Bankbank77 30S159 30W&Pribilof Canyoncanyon55 35N170 00W'Prince Consort Bankreef7 53N110 00E8Prince Edward Fracture Zone fracture zone46 00S35 00E(Prince of Wales Bankreef8 07N110 32E+Prince of Wales Shoalshoal65 54N168 00W(Princesse Alice Bankbank38 00N29 15W+Pritchett Seamountseamount50 20N161 10W& Proa Seamountseamount11 20N163 50W+Prokofiev Seamountseamount25 51N157 53W'Protea Seamountseamount36 50S18 05E$Protector Shoalshoal55 59N28 10W$Protector Shoalshoal55 59N28 10W"Provencaux Bankbank35 33N2 27W"Providence Reefreef9 30S51 15E# Ptolemy Basinbasin27 30N156 30E*Ptolemy Seamounts seamounts34 30N25 00E)Puccini Seamountseamount32 15N162 21W&Puerto Rico Ridgeridge21 00N66 00W(Puerto Rico Trenchtrench20 00N66 00W$ Pukaki Canyoncanyon43 20S174 00E Pukaki Gapgap43 40S174 20E" Pukaki Knollknoll49 20S171 59E$ Pukaki Saddlesaddle49 15S176 40E! Pulley Ridgeridge25 52N83 36W# Pulmo Canyoncanyon23 27N109 22W(Putnam Seamountseamount51 33N160 25W" Puysegur Bankbank46 30S166 00E&Puysegur Trenchtrench48 20S164 10E  Pygmy Shoalreef16 13N114 41E&Quatsino Canyoncanyon50 10N128 10W3Quebrada Fracture Zone fracture zone3 40S103 00W'Queen Charlotte Fanfan51 45N131 30W/Queen Charlotte Terraceterrace52 45N132 30W-Queen Charlotte Troughtrough53 00N133 30W)Queen Elizabeth Riserise82 00N110 30W+Queen Elizabeth Shelfshelf80 30N100 00W*Queen of the Sea Bankreef10 24N120 29E*Queensland Plateauplateau17 00S150 00E0Queensland Tablemount tablemount27 35S155 10E(Queensland Troughtrough18 30S148 00E2Queiros Fracture Zone fracture zone22 30S95 00W)Queiros Seamountseamount10 00N108 50W&Quinault Canyoncanyon47 21N125 08W'Quinn Seamountseamount56 15N145 15W$Quionga Canyoncanyon10 32S40 40E'R.S.A. Seamountseamount39 40S6 15 W.Rachmaninoff Seamountseamount29 35N163 24W# Radford Ridgeridge12 00N159 00W(Raff Seamounts seamounts44 09N141 48W Raita Bankreef25 37N169 27W'Raitt Seamountseamount42 39N143 03W Rakiura Gapgap46 50S168 18E  Ralik Ridgeridge8 00N167 00E$ Ramapo Bankseamount27 15N145 10E" Rampart, Theridge31 00N118 30W$Rancheria Basinbasin12 45N73 05W  Ranger Bankbank28 34N115 30W$Rangiauria Spurspur45 25S175 20W Rankin Bankbank27 55N93 27W" Rapano Ridgeridge26 40N159 00W/Rat Fracture Zone fracture zone49 00N178 00E(Rat Island Canyoncanyon51 30N177 51E! Ratak Ridgeridge10 00N170 00E%Raukumara Plainplain36 20S179 00E'Ravel Seamountseamount27 16N161 40W! Raven Ridgeridge27 05N159 49W% Rea Seamountseamount25 31N167 15E&Rebman Seamountseamount7 17N21 24W.Recorder Tablemount tablemount25 10S154 50E%Redondo Canyoncanyon33 49N118 28W# Redondo Knollknoll33 41N118 34W Reed Bankbank11 27N116 54E)Reedjones Seamountseamount7 34N21 05W)Rehoboth Seamountseamount37 30N59 50W" Reinga Basinbasin35 00S170 25E" Reinga Ridgeridge33 30S170 40E Rene Shoalreef5 31N119 10E*Rennell Island Ridgeridge12 15S160 00E%Rennell Troughtrough12 00S159 15E%Researcher Ridgeridge15 15N50 30W+Researcher Seamountseamount27 56N68 14W! Reserve Bankbank43 15S177 10E&Resolution Ridgeridge46 10S165 00E*Retriever Seamountseamount39 48N66 15W$Reunion Trenchtrench23 20S52 15E)Revelle Seamountseamount42 21N139 30W)Reydharfjardhardjupvalley64 50N12 45W$Reykjanes Basinbasin62 30N33 30W$Reykjanes Ridgeridge62 00N27 00W(Reykjarfjardharallvalley66 30N21 10W  Reynisdjupvalley63 18N18 48W Rezak Bankbank27 58N92 22W! Rharb Valleyvalley34 45N8 00W5Rhode Island Shelf Valley shelf valley41 10N71 17W! Rhodes Basinbasin35 55N28 30E Rhone Fanfan42 30N5 00E Rhone Fanfan41 00N5 00E*Richards Seamountseamount42 50N136 27W%Richardson Hillshills32 00N77 30W+Richardson Seamountseamount40 45S14 10E! Richmond Reefreef5 05N112 43E! Riddells Reefreef4 37N119 09E)Riemann Seamountseamount12 03N110 04W" Rifleman Bankreefs7 45N111 38E,Rio de la Plata Canyoncanyon37 10S53 44W!Rio Grande Gapgap30 30S39 10W#Rio Grande Riserise31 00S35 00W# Ritchie Banksbanks39 38S178 20E$Rittenburg Bankbank37 53N123 20W2Rivera Fracture Zone fracture zone18 40N107 15W  Robbie Bankreef11 03S176 53W" Robbie Ridgeridge10 15S175 00W%Roberts Canyoncanyon52 27N179 21E(Rochambeau Bankseamount15 09S176 42W  Rock Knollknoll30 19N129 23E  Rockall Bankbank57 30N13 50W  Rockall Riserise59 00N14 00W$Rockall Troughtrough57 00N12 00W)Rockaway Seamountseamount36 10N52 15W" Rodgers Basinbasin42 30N68 30W Rodgers Passgap42 35N68 43W(Rodgers Seamountseamount17 05S36 50W4Rodrigues Fracture Zone fracture zone20 00S67 00E$Rodrigues Ridgeridge19 30S62 00E+Rodriguez Seamountseamount34 03N121 04W$Roggeveen Basinbasin31 30S95 30W"Roggeveen Riserise31 25N91 30W  Roia Canyoncanyon43 45N7 39E2Romanche Fracture Zone fracture zone0 00N17 00W Romanche Gapgap0 10S18 15W"Rompidas Ledgereef23 47N80 28WRoo Riserise12 00S111 00E& Rosa Seamountseamount26 12N114 58W! Rosalind Bankbank16 30N80 30W  Rosario Bankbank18 30N84 05W%Rose Blanche Bankbank47 25N58 50W% Rosemary Bankseamount59 15N10 10W+Rosenberg Seamountseamount25 30N168 03E  Roseway Bankbank43 25N64 45W" Roseway Basinbasin43 10N65 05W Ross Bankbank76 45S176 00E" Ross Canyoncanyon75 00S163 00W)Rossini Seamountseamount32 12N163 00W Rost Bankbank68 00N11 30E  Rotuma Reefreef13 25S179 21W'Rouse Seamountseamount28 26N167 39E# Rovuma Canyoncanyon10 26S40 30E" Rowley Shelfshelf20 00S117 00E# Rowley Shoalsreefs17 20S119 10E'Royal Bishop Banksreefs9 42N108 10E(Royal Charlotte Bankbank16 00S38 00W(Royal Charlotte Reefreef7 00N113 35E" Royal Troughtrough16 10N49 00W! Royalist Bankreef8 11N105 11E# Ruapuke Basinbasin46 53S168 30E" Rude Canyoncanyon53 18N178 45E  Rude Knollknoll52 50N179 30E,Rumble III Seamountseamount35 45S178 28E% Rune Seamountseamount57 10N45 10W'Ryofu Seamountseamount37 59N145 58E" Ryukyu Ridgeridge26 00N127 00E$ Ryukyu Trenchtrench24 45N128 00E*S. Smith Seamountseamount26 58N164 21E(Sa'o Vicente Canyoncanyon36 57N9 25W*Saavedra Seamountseamount10 18N107 40W Saba Bankreefs17 30N63 30W! Sabina Shoalshoal9 45N116 29E  Sabine Bankreefs29 27N93 40W%Sable Island Bankbank43 45N60 30W+Sables d'Olonne Canyoncanyon45 54N4 03W  Sackett Bankbank28 38N89 33W  Sado Ridgeridge39 00N138 45E  Saga Guyotguyot43 25N170 00E  Sagami Bankbank35 09N139 23E$ Sagami Canyoncanyon35 15N139 22E$ Sagami Troughtrough34 42N139 40E Saglek Bankbank59 00N61 40W*Saharan Seamounts seamounts25 30N19 50W  Sahul Bankreefs11 30S125 00E! Sahul Shelfshelf12 30S125 00E# Saint Canyoncanyon51 30N176 55E&Saint Croix Basinbasin18 02N64 10W&Saint Croix Ridgeridge17 40N65 15W(Saint Croix Valleyvalley17 38N64 26W'Saint Esprit Shoalreef19 32N113 00E*Saint George Canyoncanyon56 00N172 00W'Saint Helena Shoalshoal32 25N80 21W,Saint Lawrence Troughtrough63 10N168 23W,Saint Lawrence Valleyvalley62 50N168 40W+Saint Matthew Canyoncanyon58 30N177 20W)Saint Nazaire Canyoncanyon46 10N4 28W4Saint Paul Fracture Zone fracture zone0 40N24 40W,Saint Paul Seamountseamount27 36N165 48E$Saint Paul Spurspur57 30N173 35W%Saint Pierre Bankbank38 57S77 44E%Saint Pierre Bankbank46 00N56 00W(Saint Rogatien Bankbank24 20N167 08W9Saint Vincent Fracture Zone fracture zone55 00S144 00E&Saint-Lazarus Bankreef12 05S41 25E" Sakuyama Peakpeak22 21N143 06E'Sala y Gomez Ridgeridge25 00S98 00W$ Salado Canyoncanyon23 17N109 21W$Salajar Troughtrough6 20S120 35E" Salerno Basinbasin40 18N14 27E$ Salmon Bankseamount26 56N176 28W(Salsipuedes Basintrough29 15N113 30W%Saltito Canyoncanyon23 25N109 20W Sambro Bankbank43 45N63 20W! Samoa Basinbasin16 00S166 00W%San Andres Ridgeridge13 30N81 20W'San Andres Troughtrough13 10N81 35W$San Antonio Reefreef22 02N85 00W)San Clemente Basintrough32 15N117 50W*San Clemente Canyoncanyon32 45N118 13W2San Clemente Escarpment escarpment32 58N118 30W(San Clemente Ridgeridge33 00N118 34W+San Cristobal Trenchtrench11 15S162 45E'San Diego Troughtrough32 40N117 35W)San Gabriel Canyoncanyon33 34N118 04W&San Isidro Basinbasin31 05N116 45W#San Jaime Bankreef22 50N110 15W&San Jose Canyoncanyon22 45N109 50W*San Juan Seamountseamount33 02N121 00W'San Lucas Canyoncanyon22 45N109 55W"San Miguel Gapgap33 54N121 00W'San Nicolas Basinbasin33 03N119 05W'San Pablo Canyoncanyon27 15N114 35W*San Pablo Seamountseamount38 50N60 22W%San Pedro Basinbasin33 33N118 26W/San Pedro Escarpment escarpment33 41N118 22W,San Pedro Martir Basinbasin28 20N112 30W'San Pedro Valleyvalley33 39N118 17W'San Quintin Basinbasin30 00N116 40W(San Salvador Knollknoll32 18N117 54W#San Vito Ridgeridge38 22N12 53E Sanak Bankbank54 16N162 00W Sanak Reefreef54 20N162 43W! Sanders Reefreef36 04S138 20E'Sanders Seamountseamount52 30S2 00E"Sandettie Bankshoal51 14N1 57E# Sandman Reefsreefs54 45N162 00W  Sandy Shoalreef11 03N117 38E" Sangihe Ridgeridge3 50N125 35E$Sangihe Troughtrough4 50N126 15E+Sant Eufemia Terraceterrace39 35N15 40E)Santa Barbara Basinbasin34 15N120 03W# Santa Canyoncanyon17 29N120 25E&Santa Cruz Basinbasin33 40N119 33W&Santa Cruz Basinbasin12 00S163 00E(Santa Cruz Canyoncanyon33 55N119 49W/Santa Cruz-Catalina Ridgeridge33 33N118 45W)Santa Isabel Troughtrough8 30S158 30E#Santa Lucia Bankbank43 36N9 29E%Santa Lucia Bankbank34 50N121 24W1Santa Lucia Escarpment escarpment34 40N121 42W)Santa Lucia Valleyvalley35 21N121 45W)Santa Maria Canyoncanyon22 50N109 45W&Santa Maria Ridgeridge36 58N27 00W(Santa Monica Basinbasin33 45N118 50W*Santa Monica Canyoncanyon33 55N118 38W$Santa Rosa Reefreef12 50N144 25E-Santa Rosa-Cortes Ridgeridge33 20N119 50W%Santander Canyoncanyon44 10N3 35W&Santiago Canyoncanyon23 40N109 36W'Santo Anta'o Ridgeridge18 50N26 30W(Santo Domingo Basinbasin18 10N69 30W'Santo Tomas Knollknoll32 30N118 41W%Santos Plateauplateau25 00S43 00W)Sardinia Seamountseamount40 04N10 08E'Sardinia Terraceterrace39 30N10 10E-Sardinia-Corsica Troughtrough41 10N10 33E! Sarera Basinbasin2 15S135 30E% Sargo Plateauplateau78 15N178 00W#Sarmiento Ridgeridge7 00S84 00W! Sars Bankseamount59 35S69 00W# Sau Sau Ridgeridge15 45S179 00E$Saunders Basinbasin76 50S155 00W&Saunders Canyoncanyon45 58S171 00E&Saury Seamountseamount12 30N80 55W(Savage Seamountseamount18 28S169 14W,Savannah Seamounts seamounts19 00S152 00W Savu Basinbasin9 15S123 15E Saxon Reefreef16 28S145 59E(Saxton Seamountseamount47 24N157 30W&Saya de Malha Bankbank10 30S61 30E# Sayniq Canyoncanyon33 33N35 20E)Scalesby Castle Shoalreef9 05N117 18E" Scantum Basinbasin42 50N70 30W+Scarlatti Seamountseamount27 37N160 15W! Scatarie Bankbank45 58N59 15W"Scawfell Shoalreef7 17N106 51E*Schaefer Seamountseamount43 00N132 26W,Schmidt-Ott Seamountseamount39 37S13 30E# Schoppe Ridgeridge51 10N139 30W(Schott Seamountseamount48 39N155 52W! Schouwen Bankshoal51 45N3 21E*Schubert Seamountseamount31 56N162 09W*Schumann Seamountseamount25 42N160 11W,Schwabenland Seamountseamount46 00S0 15E%Scoresby Valleyvalley70 00N21 30W" Scotian Shelfshelf44 00N62 00W'Scott Island Bankridge67 45S179 55W% Scott Plateauplateau13 20S120 30E Scott Reefreef14 00S121 50E+Scott Seachannel seachannel49 55N133 00W'Scott Seamountseamount50 30N141 30W)Scott Seamounts seamounts60 00S179 50W! Scott Shoalshoal73 15S177 45E%Scripps Canyoncanyon32 52N117 16W# Scripps Guyotguyot23 50N159 23E# Sculpin Ridgeridge15 45N167 20W Scuso Bankknoll38 15N12 33E'Sea Otter Valleyvalley51 20N129 00W%Seadragon Ridgeridge12 30N158 45W(Seafox Seamountseamount30 30S172 45W%Seahorse Breakersreef5 31N112 36E#Seahorse Shoalreef10 48N117 48E1Sealark Fracture Zone fracture zone4 00S68 30E,Seamap Seachannel seachannel51 45N162 30W" Sebaou Canyoncanyon37 05N3 43E'Second Thomas Shoalreef9 44N115 50E&Sedlo Seamountseamount40 25N26 55W1Sedna Fracture Zone fracture zone47 30N145 00W# Sedna Ridgesridges47 30N143 16W+Seewarte Seamounts seamounts30 00N28 30W" Sefsaf Canyoncanyon36 49N3 33E$ Seguam Canyoncanyon52 40N172 36W" Segula Basinbasin50 31N178 00E$ Segula Canyoncanyon52 12N177 54E" Segula Knollknoll50 28N177 58E)Segundo Seamountseamount13 00N165 05W  Seine Plainplain34 00N12 15W&Seine Seamountseamount33 45N14 25W  Selkirk Riserise37 00S82 00W" Sembuni Reefsreefs2 17N109 11E*Seminole Seamountseamount49 46N129 50W,Sengfeller Seamountseamount49 50N157 45W Sentry Bankreef5 40N119 18E&Seringapatam Reefreef13 38S122 05E%Sermilik Valleyvalley64 30N36 30W+Serrano Seamounts seamounts11 10N163 00W,Serrano Tablemount tablemount9 15N158 05W#Setubal Canyoncanyon38 15N9 15W" Sevuokuk Spurspur63 46N172 24W  Sewell Ridgerise42 41N67 50W"Seychelles Bankbank4 45S55 30E)Seydhisfjardhardjupvalley65 20N13 00W%Seymour Canyoncanyon51 12N178 45E! Seymour Spurspur50 58N178 15E+Shackleton Seamountseamount36 54S22 45E$Shallop Canyoncanyon39 56N69 07W! Shallow Shoalreef8 28N117 05E+Shalowitz Seamountseamount46 09N135 12W$Shamrock Canyoncanyon47 45N8 45W(Shannon Seamountseamount43 00S2 25 E)Sharpshooter Canyoncanyon40 02N68 35W" Sharrer Basinbasin42 25N68 59W" Sharrer Ridgeridge42 33N69 03W" Shatskiy Riserise35 00N160 00E& Shaw Seamountseamount52 40N150 45W-Shcherbakov Seamountseamount10 45S104 50E$Shediac Valleyvalley47 20N64 25W*Sheldrake Seamountseamount38 25N62 10W$Shepard Canyoncanyon17 45N64 58W# Shepard Knollknoll32 05N118 29W$Shephard Guyotguyot19 10N179 45W*Shepherd Seamountseamount17 32N154 07W%Shepherdess Reefreef41 45S174 18E)Shiashkotan Valleyvalley48 30N154 16E$Shichiriga Bankbank33 56N129 30E)Shih-t'i Pi Canyoncanyon23 31N121 30E# Shikoku Basinbasin28 00N137 00E)Shimada Seamountseamount16 52N117 31W Shin Bankbank39 40N139 32E Shin Reefreef32 52N128 40E%Shin-matsuye Bankreef7 56N148 21E Ship Shoalshoal28 54N91 00W! Shirase Bankbank76 40S158 00W$Shirshov Ridgeridge57 30N171 00E& Shor Seamountseamount42 30N133 05W&Shortland Canyoncanyon43 50N58 15W.Shostakovich Seamountseamount33 16N164 53W! Showa Guyotguyot43 00N170 30E#Shtokman Guyotguyot25 00S82 05W+Shuleykin Seamountseamount41 15N163 00E" Shumagin Bankbank54 39N159 22W*Siafiafi Seamountseamount12 15S175 30W" Siamese Shoalreef15 58N114 04E*Sibelius Seamountseamount27 13N160 44W)Siberia Seamountseamount41 45N132 25E(Siboney Seamountseamount33 20N61 40W)Sibutu-Basilan Ridgeridge5 45N121 00E" Sicilia Basinbasin36 30N17 30E" Sicilia Plainplain36 00N18 00E%Sicily Terraceterrace36 30N17 00E Sidner Bankbank27 55N92 23W  Sidra Plainplain34 10N19 22E&Sierra Leone Basinbasin5 00N17 00W6Sierra Leone Fracture Zone fracture zone6 00N31 00W&Sierra Leone Plainplain5 00N17 00W$Sierra Leone Riserise5 30N21 00W(Sierra Seamountseamount32 38N150 09E" Sigsbee Basinbasin42 58N69 13W,Sigsbee Escarpment escarpment26 00N92 30W$Sigsbee Knollsknolls23 45N92 25W" Sigsbee Plainplain23 30N93 00W" Sigsbee Ridgeridge43 02N69 07W0Sila Fracture Zone fracture zone51 30N150 00W" Siltcoos Bankbank43 51N124 25W  Silver Bankreefs20 30N69 45W! Silver Plainplain22 30N69 30W#Silvertown Bankbank21 25N79 55W  Simo Banksreefs14 05N120 19E2Simpson Fracture Zone fracture zone43 30S39 15E)Simpson Seamountseamount12 40N160 15W*Simpson Seamounts seamounts37 09S17 02E%Sinaloa Canyoncanyon25 14N109 06W$ Sio Guyot tablemount18 18N171 06E4Siqueiros Fracture Zone fracture zone8 10N104 00W(Sirius Seamountseamount52 00N160 50W$ Sitkin Canyoncanyon52 15N178 21E'Sixtymile Bankseamount32 03N118 15W'Skagafjardhardjupvalley66 23N19 24W(Skagit Seamountseamount21 02N179 32W$Skeidharardjupvalley63 25N16 45W  Skerjadjupvalley63 20N23 35W Skerki Bankbank37 45N10 50E$Skjalfandadjupvalley66 25N17 35W$Skjoldungen Bankbank62 35N40 38W(Skjoldungen Valleyvalley62 52N40 40W  Sklinna Bankbank65 15N10 15E'Skraelling Canyoncanyon62 30N38 30W*Smetanin Seamountseamount40 40N146 50E  Smith Shoalreef15 27N114 12E'Smook Seamountseamount55 09N150 07W& Smoot Guyot tablemount26 05N145 20E#Snellius Ridgeridge4 00N128 00E)Snodgrass Seamountseamount7 50N20 44W+Snowden Seamounts seamounts16 00N156 00W$ Sobaka Canyoncanyon51 30N177 13E# Society Ridgeridge17 00S151 00W Sohm Plainplain36 00N55 00W&Solander Troughtrough47 30S165 45E# Soledad Basinbasin30 10N117 35W%Soledad Canyoncanyon23 40N109 32W" Solomon Basinbasin7 00S152 00E  Somali Basinbasin0 00N52 00E  Somali Plainplain1 00N51 30E(Somers Seamountseamount13 55N166 35W)Somnitel naya Shoalshoal59 30N165 00E'Sonne Seamountseamount15 07N156 40W" Sonnier Banksbanks28 20N92 27W$ Soquel Canyoncanyon36 48N122 00W(Sorensen Seamountseamount7 50N21 50W" Sorol Troughtrough7 05N143 00E# Soudan Bankseamount18 32S58 43E*South Aleutian Slopeslope51 40N175 00W,South Australian Basinbasin38 00S126 00E,South Australian Plainplain37 30S130 00E&South Banda Basinbasin6 30S127 30E)South Bellona Reefsreefs21 51S159 30E.South Charcot Seamountseamount44 41N13 00W'South China Basinbasin15 00N115 00E&South Fiji Basinbasin26 00S175 00E(South Georgia Ridgeridge54 00S40 00W&South Georgia Riserise52 30S32 30W(South Heyes Canyoncanyon38 13N73 34W-South Honeycomb Canyoncanyon41 27S175 51E(South Honshu Ridgeridge24 00N142 00E(South Indian Basinbasin60 00S120 00E(South Indian Plainplain59 00S125 00E)South Luconia Shoalsreefs5 00N112 42E&South Madden Bankbank40 38S177 01E)South Makassar Basinbasin4 00S118 30E'South Maria Ridgeridge34 06S171 48E'South Orkney Ridgeridge60 00S40 00W)South Orkney Troughtrough60 00S45 00W South Reefreef11 24N114 17E South Reefreef4 30N119 22E&South Regent Shoalreef8 32N117 05E9South Sandwich Fracture Zone fracture zone63 00S20 00W)South Sandwich Ridgeridge58 00S27 00W+South Sandwich Trenchtrench56 30S25 00W'South Scotia Ridgeridge60 00S46 30W+South Seachannel seachannel46 45S172 15E+South Shetland Troughtrough61 00S59 30W+South Solomon Trenchtrench11 00S164 30E&South Tasman Riserise49 00S148 00E'South Toms Canyoncanyon38 59N72 41W(South Trinco Canyoncanyon8 40N81 38E'South Vereker Bankbank20 56N115 57E(South Vries Canyoncanyon38 05N73 40W-South Wilmington Canyoncanyon38 16N73 28W'Southampton Reefsreefs10 12N115 19E.Southeast Dellwood Knollknoll50 43N130 18W,Southeast Indian Ridgeridge50 00S110 00E-Southeast Pacific Basinbasin60 00S115 00W$Southeast Shoalshoal44 15N49 48W9Southern California Borderland borderland32 30N118 30W$Southern Reefsreefs10 25N116 32E+Southern Viti Canyoncanyon39 07S172 27E.Southwest Aleutian Ridgeridge51 00N172 00E"Southwest Bankreef7 38N118 23E+Southwest Indian Ridgeridge43 00S40 00E-Southwest Pacific Basinbasin40 00S150 00W'Southwestern Banksreefs7 48N116 54E3Sovanco Fracture Zone fracture zone49 15N131 00WSP Basinbasin76 30N172 00W%Spanish Canyoncanyon40 06N124 18W/Spar Fracture Zone fracture zone69 00N17 30W$Spencer Canyoncanyon38 34N73 08W&Spiess Seamountseamount54 40S0 15E*Spilhaus Seamountseamount42 40N141 45W$Spitsbergen Bankbank76 00N23 00E5Spitsbergen Fracture Zone fracture zone80 00N0 00E(Spjaeldebod Canyoncanyon63 35N35 40W'Sprat Hall Canyoncanyon17 45N64 57W-Springfield Seamountseamount48 04N130 12W Spur Reefreef16 24S146 03E,Srivastava Seamountseamount44 31N136 07W#Stalemate Bankbank53 05N170 55E'Stalemate Canyoncanyon52 50N171 25E$Stamukhi Shoalshoal70 42N149 22W*Standard Seamountseamount35 00S157 44E)Stanley Seamountseamount43 08N143 35W.Staten Island Seamountseamount0 53S156 42W.Steel Vendor Seamountseamount40 23N129 27W&Stefansson Basinbasin82 30N133 00W#Stellwagen Bankbank42 20N70 15W%Stellwagen Basinbasin42 20N70 25W# Stembel Knollknoll29 07N136 33W! Stephen Spurspur51 45N177 00E  Stetson Bankbank28 10N94 18W# Stetson Guyotguyot19 40N176 05E  Stetson Mesamesa30 19N79 24W)Stevens Seamountseamount48 09N158 00W)Stewart Seamountseamount17 20N118 50E-Stickleback Seamountseamount24 36N177 54W Stiffe Bankbank26 25N53 08E#Stingray Shoalreef20 30N142 22E(Stirni Seamountseamount49 08N132 18W'Stocks Seamountseamount12 15S32 00W*Stoddard Seamountseamount31 45N126 12W$ Stokes Canyoncanyon34 50S121 00E*Stone Fence, The escarpment44 45N57 25W#Stonewall Bankbank44 30N124 25W'Stonewall Valleyvalley44 35N124 18W)Store Hellefiske Bankbank67 30N55 00W$Storfjordrennavalley76 00N17 00E'Stout Seamountseamount31 40N149 00E Stout Swellrise42 16N68 06W'Strabo Seamountseamount39 29N14 50E# Strabo Trenchtrench34 20N27 00E,Stradbroke Seamountseamount29 00S155 40E*Strakhov Seamountseamount12 30N173 15E(Strandberg Canyoncanyon52 26N176 45E$Strathmore Reefreef11 10S170 40E)Strauss Seamountseamount33 18N164 09W,Stravinsky Seamountseamount31 29N164 36W$Sturdevant Rockreef52 08N177 17E$Stvor Seamountseamount9 55S5 25W Subi Reefreef10 55N114 10E$Suiko Seamountguyot44 30N170 20E,Suitcase Seamounts seamounts21 00N112 30W%Sukkertoppen Bankbank65 00N53 35W)Sukkertoppen Valleyvalley64 20N53 00W  Sultan Bankreef11 24N121 30E#Sultana Shoalsreefs9 57N121 23E Sulu Basinbasin8 00N121 30E! Sulu Troughtrough8 00N121 15E&Sulzberger Basinbasin77 00S152 30W'Sun Ray Seamountseamount0 32S88 33W! Suna Canyoncanyon11 18S40 45E  Sunda Shelfshelf5 00N107 00E" Sunda Troughtrough8 50S109 30E Sunday Bankreef5 50N119 09E" Sunday Basinbasin51 34N180 00E'Suno Saki Canyoncanyon34 56N139 35E  Supply Reefreef20 09N145 06E! Sur Canyoncanyon36 06N122 04W$ Suruga Canyoncanyon34 43N138 35E4Surveyor Fracture Zone fracture zone43 00N155 00W  Surveyor Gapgap56 15N144 45W.Surveyor Seachannel seachannel56 00N147 20W*Surveyor Seamountseamount56 05N144 20W" Sverdrup Bankbank33 08N120 27W$Sverdrup Slopeslope80 00N115 00W$Svyataya Anna Fanfan85 00N70 00E*Svyataya Anna Troughtrough80 00N70 00E! Swain Reefsreefs21 40S152 15E" Swallow Knollknoll28 00N68 32W  Swallow Reefreef7 22N113 49E! Swan Troughtrough17 40N83 10W)Swatch of No Groundtrough21 15N89 28E! Swatch, Thetrough23 16N67 16E Sweet Bankbank27 51N91 49W#Swiftsure Bankbank48 33N125 00W+Swordfish Seamountseamount18 25N158 25W.Sylvania Tablemount tablemount11 58N165 00E+Sylvester Seamountseamount24 05N167 48E  Sylvia Knollreef37 55N11 02E%Tadjoura Troughtrough12 00N44 30E& Taga Seamountseamount14 24N144 49E  Tagus Basinbasin37 50N11 40W  Tagus Plainplain37 30N12 00W" Tahoma Basinbasin51 15N175 39E$ Tahoma Canyoncanyon51 45N175 23E" Tahoma Knollknoll51 11N175 34E  Tahoma Reefreef51 53N175 50E%Taiaroa Canyoncanyon45 46S171 10E$ Taieri Canyoncanyon46 15S170 47E" Taiwan Banksbanks23 00N118 35E0Takuyo-daiichi Seamountseamount41 16N145 56E.Takuyo-daini Seamountseamount34 17N143 52E/Takuyo-daisan Seamountseamount34 12N144 18E"Talantam Shoalreef5 42N119 27E! Talaud Ridgeridge4 30N126 45E# Talaud Troughtrough4 00N127 25E! Talbot Shoalshoal37 30N11 40E2Tamayo Fracture Zone fracture zone23 00N108 20W$Tambuzi Canyoncanyon11 25S40 44E# Tanadak Basinbasin50 45N179 34W$ Tanaga Canyoncanyon51 47N178 30W" Tancred Shoalreef15 41N113 54E)Taney Seamounts seamounts36 45N125 20W! Tanner Bankknoll32 42N119 08W# Tanner Basintrough32 52N119 40W$ Tanner Canyoncanyon32 35N119 02W Tarang Reefreef7 40N147 36E+Tarang Tablemount tablemount8 23N145 15E%Taranui Valleyvalley32 22S168 26E" Tasman Basinbasin43 00S158 00E2Tasman Fracture Zone fracture zone58 30S151 00E" Tasman Plainplain34 30S153 15E&Tasman Plateauplateau45 00S147 00E-Tasmantid Seamounts seamounts31 00S156 00E# Tatar Troughtrough46 30N140 00E&Tateyama Canyoncanyon35 00N139 45E! Tatsumi Reefreef14 54N145 40E+Taupo Tablemount tablemount33 10S156 10E)Taussig Seamountseamount48 30N158 15W% Taviuni Bankseamount12 06S174 35W(Taylor Seamountseamount24 57N162 00E-Tchaikovsky Seamountseamount29 23N162 05W  Teck Knollknoll51 06N177 18E&Tehuantepec Ridgeridge13 30N98 00W4Tehuelche Fracture Zone fracture zone54 30S46 00W Tema Reefreef11 05S165 35W! Templer Bankreef11 09N117 14E$Tenji Seamountguyot49 00N168 25E$Ternate Troughtrough0 30N126 40E(Terra Nova Canyoncanyon69 00S159 00E! Terrible Bankbank37 10N12 50E'Terry Seamountseamount43 24N139 52W*Tethys Seamounts seamounts11 58N162 30W*Texas-Louisiana Shelfshelf28 30N93 00W1Tharp Fracture Zone fracture zone54 00S135 00W Theta Gapgap43 30N12 40W  Thetis Bankreef24 56N112 36W%Thirtymile Bankridge32 40N117 47W! Thitu Reefsreefs11 02N114 16E-Thomas Washington Guyotguyot32 00N149 15E*Thompson Seamountseamount46 03N128 35W%Thomson Troughtrough45 00S158 00E! Thornton Bankshoal51 34N3 00E%Three Dory Ridgeridge43 12N69 21W%Three Kings Riserise33 30S172 30E)Three Kings Troughtrough34 00S172 00E#Three Points Spurspur3 50N2 30W! Thunder Knollbank16 27N81 20W$Thurmond Basinbasin50 51N177 36E&Thurmond Canyoncanyon50 48N178 03E$Thurmond Knollknoll50 51N177 59E*Thurston Seamountseamount17 00N155 58W# Tiburon Basinbasin29 00N112 50W! Tijitiji Reefreef4 52N119 54E  Tiki Basinbasin13 30S135 30W" Tillies Basinbasin42 30N70 20W" Timor Troughtrough9 50S126 00E$Tin City Shoalshoal65 08N167 40W$ Tinaja Valleyvalley22 50N110 12W'Tingmiark Valleyvalley70 25N131 10W! Tinro Basinbasin56 00N153 00E Tinro Riserise56 00N150 00E& Tiru Seamountseamount20 35N166 57W&Titov Seamountseamount0 30S176 00W)Tittman Seamountseamount45 10N157 45W  Toba Guyotguyot33 15N171 40E! Tobago Basinbasin12 30N60 30W! Tobago Plainplain13 00N60-30W Tobi Ridgeridge4 00N132 00E%Tobishima Basinbasin39 22N139 44E Tofin'o Bankbank35 28N3 56W! Tofua Ridgeridge20 00S175 10W# Tofua Troughtrough19 30S174 47W# Tokyo Canyoncanyon35 03N139 45E! Toms Canyoncanyon39 07N72 42W! Tonga Ridgeridge21 00S175 00W# Tonga Trenchtrench20 00S173 00W)Tongue of the Oceantrough24 30N77 30W  Tongue Reefreef16 20S145 48E% Tore Seamountseamount39 25N12 52W'Torreblanca Canyoncanyon40 13N1 21E'Torrelavega Canyoncanyon44 10N4 00W  Torres Riserise13 40S165 10E'Torres Seamountseamount8 31N106 58W! Tortugas Bankreef24 39N83 04W'Tortugas Terraceterrace24 05N83 00W%Tortugas Valleyvalley23 57N83 10W$ Tosa Terraceterrace32 25N133 30E3Townsend Cromwell Seamountseamount29 50N179 04E,Toyama Seachannel seachannel38 30N137 45E(Toyama Seamountseamount43 25N138 55E$ Toyama Troughtrough38 00N138 00E(Tracey Seamountseamount13 39N144 25E Traena Bankbank66 15N9 45E#Transkei Basinbasin35 30S29 00E! Trask Knollknoll33 37N120 16W%Tregrosse Reefsreefs18 00S150 30E'Tres Marias Basinbasin20 50N106 25W! Tresslar Bankbank27 53N92 22W! Tressler Bankbank65 00S95 00E-Trevelyan Escarpment escarpment46 50N9 00W&Treworgie Canyoncanyon43 45N52 48W" Trident Ridgeridge36 33N26 23W" Trident Shoalreef11 31N114 38E'Trincomalee Canyoncanyon8 30N81 15E-Trindade Seachannel seachannel23 00S32 36W&Trinidad Canyoncanyon41 09N124 50W" Trinity Shoalshoal29 12N92 12W Tripp Reefreef5 29N112 30E&Tripp Seamountseamount29 37S14 15E! Triton Shoalshoal5 58S138 04E&Trobriand Troughtrough8 00S150 00E" Trold Canyoncanyon62 40N37 30W  Tromsoflaketbank71 30N18 30E'Tropic Seamountseamount23 50N20 40W&Troubadour Shoalsreefs9 55S128 35E  Truro Shoalreef16 19N116 41E" Truxton Basinbasin43 07N68 17W! Truxton Swellrise43 08N67 30W! Tryal Ridgeridge31 00S102 40E$Tsushima Basinbasin37 00N131 00E$Tsushima Plainplain37 00N131 00E&Tsushima Troughtrough34 49N129 17E3Tuamotu Fracture Zone fracture zone12 30S127 00W# Tuamotu Ridgeridge17 00S145 00W$Tubbataha Reefsreefs8 51N119 56E(Tucker Seamountseamount49 50N133 30W! Tufts Plainplain47 00N140 00W# Tugela Canyoncanyon30 05S32 13E% Tui Seamountseamount30 45S173 16E(Tulare Seamountseamount20 57N176 04W! Tumindao Reefreef4 42N119 19E)Tung-chiang Canyoncanyon22 24N120 23E# Tungue Canyoncanyon10 44S40 40E%Turnagain Banksbanks40 33S176 42E'Turnagain Canyoncanyon40 55S176 49E! Turpie Bankknoll11 25S175 45E,Tuscaloosa Seamountseamount22 02N157 02W#Tuscany Troughtrough42 20N9 54E+Tuscarora Seamountseamount11 50S178 15W! Tusket Basinbasin42 50N66 45W/Tuzo Wilson Seamounts seamounts51 26N130 55W%Tyrrhenian Basinbasin40 00N13 00E%Tyrrhenian Plainplain40 00N12 45E4Udintsev Fracture Zone fracture zone57 00S145 00W4Udintsev Fracture Zone fracture zone56 00S143 30W" Ukivok Shoalshoal65 05N167 47W  Ulak Basinbasin50 45N179 08W$ Uliaga Canyoncanyon53 40N169 30W! Ulloa Knollknoll22 35N108 55W Ulloa Reefreef7 02N144 12E&Ullung Plateauplateau38 30N131 30E# Ulm Plateauplateau54 50N176 30E% Umitaka Bankseamount67 25S167 00E! Umnak Basinbasin52 35N167 50W# Umnak Canyoncanyon53 45N170 00W% Umnak Plateauplateau54 15N170 15W$Unalaska Basinbasin52 50N166 05W" Unalga Basinbasin51 22N179 15W  Unarang Rockreef4 01N118 05E#Uncle Sam Bankbank25 38N113 24W(Unicorn Seamountseamount34 45N14 27W(Unimak Seamountseamount53 40N162 30W  Union Reefsreefs9 48N114 22E'Union Seamountseamount49 35N132 45W" Uracus Ridgeridge20 45N144 35E" Urashima Bankbank35 58N135 21E)Urdaneta Seamountseamount9 23N111 09W Urry Bankknoll45 00S174 14E" Usof Canyoncanyon53 05N166 40W+Ustica Escarpment escarpment38 29N11 37E! Ustica Ridgeridge38 38N12 25E# Ustica Troughtrough38 22N12 40E! Uyeda Ridgeridge27 20N144 20E*Vacquier Seamountseamount42 30N139 59W3Valdivia Fracture Zone fracture zone41 30S89 00W(Valdivia Seamountseamount26 15S6 25E$Valencia Troughtrough40 10N2 00E$Valparaiso Shoalreef7 51N118 27E# Vamizi Canyoncanyon10 57S40 45E%Van Cloon Shoalshoal12 37S126 27E$Van Diemen Bankbank34 00S171 45E/Van Wyckhouse Seamountseamount23 24N162 12E'Vance Seamountseamount45 30N130 40W'Vancouver Canyoncanyon35 30S118 30E! Vancouver Gapgap49 50N128 50W'Vancouver Valleyvalley47 00N128 00W(Vanderford Valleyvalley66 25S110 10E! Vanguard Bankreef7 28N109 37E#Vanguard Knollknoll28 10N68 01W"Vanguard Shoalreef8 55N117 16E% Vaughan Bankseamount67 37S163 30E(Vavilov Seamountseamount39 52N12 36E! Vavilov Spurspur46 50N150 30E&Vayda Seamountseamount14 50N48 00W# Veatch Canyoncanyon39 52N69 36W  Vega Basinbasin50 46N177 03E" Vega Canyoncanyon51 30N177 09E  Velasco Reefreef8 20N134 37E" Velero Basinbasin31 30N118 30W/Vema Fracture Zone fracture zone10 00S66 30E/Vema Fracture Zone fracture zone11 00N44 00WVema Gapgap24 15N68 40W$ Vema Seamountseamount31 38S8 19E Vema Trenchgap9 00S67 20E%Venezuelan Basinbasin15 00N68 00W%Venezuelan Plainplain14 00N67 00W2Vening Meinesz Seamounts seamounts11 00S102 30E%Veracruz Tonguetongue20 30N94 50W! Verde Canyoncanyon43 47N7 54E'Verdi Seamountseamount32 09N163 31W# Vereker Banksbanks21 05N116 00E4Vernadskiy Fracture Zone fracture zone7 30N34 45W! Vernon Basinbasin26 50N85 20W$Verrill Canyoncanyon42 50N61 15W  Veryan Bankbank44 20S176 10E,Veryan Seachannel seachannel45 40S176 35E$ Vesteris Bankseamount73 30N9 00W&Vestfjord Valleyvalley67 40N13 30E3Victoria Fracture Zone fracture zone4 00N176 00E  Vidal Plainplain15 30N55 00W*Vidal Seachannel seachannel14 35N54 00W# Vigia Canyoncanyon22 47N