Undersea features map
950 named features of the ocean floor, from the Mariana Trench to small seamounts, each with its depth in the GEBCO_2026 grid. 300 of them, the best known by the number of Wikipedia languages that cover them, have a full page. Names and positions are from Wikidata. A trench or ridge has a single listed point there, so for those the depth is the deepest cell found near it (trenches) or the depth at that point (ridges), and each page says which. Seamounts show the depth of their summit.
Trenches (39)
Oceanic trenches are long, narrow valleys where one tectonic plate slides beneath another. They hold the deepest water on Earth, and most lie around the edge of the Pacific Ocean.
| Name | Depth | Nearest country |
|---|---|---|
| Mariana Trench | 10,931 m | Federated States of Micronesia |
| Tonga Trench | 10,755 m | Tonga |
| Philippine Trench | 10,090 m | Philippines |
| Kermadec Trench | 10,050 m | New Zealand |
| Yap Trench | 9,918 m | Federated States of Micronesia |
| Izu-Ogasawara Trench | 9,841 m | Japan |
| Kuril–Kamchatka Trench | 9,595 m | Russia |
| Sangihe Trench | 9,595 m | Indonesia |
| New Britain Trench | 8,949 m | Papua New Guinea |
| Puerto Rico Trench | 8,824 m | Puerto Rico |
| South Sandwich Trench | 8,258 m | South Georgia and the South Sandwich Islands |
| Peru–Chile Trench | 8,243 m | Chile |
| Romanche Trench | 7,873 m | Saint Helena |
| Japan Trench | 7,867 m | Japan |
| New Hebrides Trench | 7,633 m | New Caledonia |
| Ryukyu Trench | 7,538 m | Japan |
| Cayman Trough | 7,402 m | Honduras |
| Manus Trench | 7,396 m | Papua New Guinea |
| Aleutian Trench | 7,340 m | United States of America |
| Sunda Trench | 7,242 m | Indonesia |
| Middle America Trench | 6,727 m | Mexico |
| Puysegur Trench | 6,281 m | New Zealand |
| Sulu Trench | 5,885 m | Philippines |
| Timor Trough | 5,544 m | East Timor |
| Litke Deep | 5,441 m | Norway |
| Tasman Fracture | 5,414 m | Australia |
| Hikurangi Trench | 5,405 m | New Zealand |
| Manila Trench | 5,317 m | Philippines |
| Calypso Deep | 5,139 m | Greece |
| Beaufort's Dyke | 2,857 m | United Kingdom |
| Devil's Hole | 396 m | United Kingdom |
8 more trenches
- Bellona Gap 4,712 m
- Bougainville Trench 8,949 m
- Fiordland Trench 6,281 m
- Palau Trench 8,115 m
- Palau Trench 8,818 m
- South Solomon Trench 9,142 m
- St. Anna Trough 3,150 m
- TINRO Trench 1,594 m
Deeps (24)
A deep is the deepest part of a trench or basin: a small area, often only a few kilometres across, that gets its own name.
| Name | Depth | Nearest country |
|---|---|---|
| Challenger Deep | 10,927 m | Federated States of Micronesia |
| Sirena Deep | 10,751 m | Guam |
| Milwaukee Deep | 8,405 m | Puerto Rico |
| Dordrecht Deep | 6,887 m | Australia |
| Galathea Depth | 6,058 m | Philippines |
| Molloy Deep | 5,559 m | Norway |
| Laurentian Fan | 3,821 m | Saint Pierre and Miquelon |
| Sigsbee Deep | 3,753 m | Mexico |
| Nanok Deep | 859 m | Antarctica |
| Landsort Deep | 452 m | Sweden |
| Gotland Deep | 250 m | Sweden |
| Hurd's Deep | 176 m | Guernsey |
| Outer Silver Pit | 90 m | United Kingdom |
11 more deeps
- Berlin abyss 5,670 m
- Coal Pit 80 m
- Diamantina Deep 5,877 m
- Horizon Deep 8,454 m
- Jeffrey Deep 2,817 m
- Lambert Deep 1,272 m
- Meteor Deep 8,041 m
- Scholl Deep 10,040 m
- Sole Pit 87 m
- The Well 46 m
- Vityas Deep 1 10,931 m
Ridges (112)
Undersea ridges are chains of mountains. The mid-ocean ridges are where new seafloor is made, as plates pull apart and hot rock rises to fill the gap.
| Name | Depth | Nearest country |
|---|---|---|
| Tonga-Kermadec Ridge | 6,714 m | Tonga |
| J-Anomaly Ridge | 4,329 m | Canada |
| Chile Rise | 4,306 m | Chile |
| Southwest Indian Ridge | 4,184 m | Mauritius |
| Southeast Indian Ridge | 4,184 m | Mauritius |
| Newfoundland Ridge | 4,124 m | Canada |
| Gakkel Ridge | 3,664 m | Greenland |
| Ninety East Ridge | 3,332 m | Indonesia |
| Phoenix Ridge | 3,232 m | Antarctica |
| Gorda Ridge | 3,218 m | United States of America |
| East Pacific Rise | 3,140 m | Chile |
| Nazca Ridge | 2,933 m | Peru |
| Pacific-Antarctic Ridge | 2,768 m | Antarctica |
| Hunter Ridge | 2,751 m | Fiji |
| Mohns Ridge | 2,405 m | Norway |
| American–Antarctic Ridge | 2,392 m | Norway |
| Carlsberg Ridge | 2,370 m | Maldives |
| Aden Ridge | 2,300 m | Yemen |
| Juan Fernández Ridge | 2,291 m | Chile |
| Central Indian Ridge | 2,284 m | French Southern and Antarctic Lands |
| Explorer Ridge | 2,055 m | Canada |
| Alpha Ridge | 2,014 m | Canada |
| Lord Howe Rise | 1,897 m | Australia |
| Mendeleev Ridge | 1,871 m | Russia |
| Brazil's Atlantis | 1,679 m | Brazil |
| Juan de Fuca Ridge | 1,512 m | Canada |
| Red Sea Rift | 1,488 m | Sudan |
| Mid-Atlantic Ridge | 1,477 m | Portugal |
| Hallett Ridge | 1,462 m | Antarctica |
| Malpelo Ridge | 1,346 m | Colombia |
| Walvis Ridge | 892 m | Namibia |
| Reykjanes Ridge | 880 m | Iceland |
| Kolbeinsey Ridge | 242 m | Iceland |
| Lomonosov Ridge | 155 m | Russia |
| Duck-Galloo Ridge | 44 m | United States of America |
| Norfolk Ridge | 43 m | Norfolk Island |
| Scotch Bonnet Ridge | 37 m | Canada |
| Erieau Ridge | 9 m | Canada |
74 more ridges
- Akitio Ridge 1,999 m
- Arctic Mid-Ocean Ridge 1,193 m
- Aries Ridge 2,206 m
- Barrier Ridge 174 m
- Bounty Ridge 751 m
- Cameron Island Rise 144 m
- Cashes Ledge 165 m
- Central Ridge 3,475 m
- Charles Cotton Ridge 1,865 m
- Charles Fleming Ridge 2,394 m
- Churchill Ridge 82 m
- Clear Creek Ridge 9 m
- Colonial Ridge 1,356 m
- Columbus Ridge 529 m
- Colville Ridge 1,337 m
- Conway Ridge 113 m
- Decca Ridge 121 m
- Dusky Ridge 2,650 m
- East Ridge 2,540 m
- Eickelberg Ridge 3,503 m
- Eirik Ridge 1,658 m
- Fife Ridge 197 m
- Franklin Swell 131 m
- Gable Ridge 681 m
- Gasline Ridge 19 m
- George Ridge 2,282 m
- Gloria Rise 3,405 m
- Grinnell Ridge 152 m
- Gunnerus Ridge 1,195 m
- Haida Ridge 1,414 m
- Harcourt Cameron Ridge 48 m
- Hauturu Ridge 2,263 m
- Henrietta Maria Ridge 114 m
- Hikunui Ridge 1,465 m
- Howell Swell 162 m
- Iceland-Faeroe Rise 329 m
- Ikpiugaaluk 43 m
- Kendall Ridge 91 m
- Knipovich Ridge 2,154 m
- Kwakiutl Ridge 1,055 m
- Leachman Ridge 2,855 m
- Long Point-Erie Ridge 9 m
- Maria Ridge 70 m
- McDougall Ridge 1,240 m
- McKinley Ridge 35 m
- Middle Ridge 2,457 m
- Morris Jesup Ridge 1,303 m
- Nootka Ridge 1,312 m
- North Maria Ridge 770 m
- Northwind Ridge 566 m
- Ottawa Ridge 47 m
- Paul Revere Ridge 1,694 m
- Pelee-Lorain Ridge 9 m
- Peters Ridge 2,786 m
- Point Pelee Ridge 9 m
- Point Petre Ridge 14 m
- Ritchie Ridge 1,147 m
- Rodgers Swell 163 m
- Sangster Ridge 226 m
- Seal Island Ridge 23 m
- Sewell Ridge 201 m
- Sharrer Ridge 175 m
- South Maria Ridge 608 m
- South Scotia Ridge 3,396 m
- Stout Swell 171 m
- Taitimu / Caswell Ridge 3,600 m
- Truxton Swell 209 m
- Two Rivers Ridge 32 m
- West Ridge 2,247 m
- West Thulean Rise 2,888 m
- Whakaari / White Island Ridge 797 m
- Whitby-Olcott Ridge 60 m
- Winona Ridge 1,765 m
- Yamato Ridge 337 m
Seamounts and guyots (420)
A seamount is an underwater mountain, usually an extinct volcano. A guyot is a seamount with a flat top, worn flat by waves when it once stood at the surface.
| Name | Depth to summit | Nearest country |
|---|---|---|
| Hunga Tonga–Hunga Haʻapai | 5 m | Tonga |
| Curacoa volcano | 6 m | Tonga |
| Reed Tablemount | 7 m | Wake Island |
| Alexa Bank | 18 m | Fiji |
| Ferdinandea | 32 m | Italy |
| Empedocles | 32 m | Italy |
| Marpi Reef | 49 m | Northern Mariana Islands |
| Ampère Seamount | 64 m | Portugal |
| Pukao | 69 m | Chile |
| Ōmurodashi | 70 m | Japan |
| Protector Shoal | 72 m | South Georgia and the South Sandwich Islands |
| Cobb Seamount | 73 m | Canada |
| Spartel | 80 m | Morocco |
| Esmeralda Bank | 81 m | Northern Mariana Islands |
| Bowie Seamount | 83 m | United States of America |
| Palinuro Seamount | 87 m | Italy |
| Viking-Bergen Banks | 93 m | United Kingdom |
| Supply Reef | 102 m | Northern Mariana Islands |
| Macdonald seamount | 116 m | French Polynesia |
| Myōjin-shō | 125 m | Japan |
| Kavachi | 140 m | Solomon Islands |
| Iriomote Submarine Volcano | 161 m | Japan |
| Kaitoku Seamount | 162 m | Japan |
| Concepción Bank | 168 m | Spain |
| Ahyi | 179 m | Northern Mariana Islands |
| Fukujin Seamount | 184 m | Northern Mariana Islands |
| Browns Mountain | 197 m | Australia |
| Patton Seamount | 222 m | United States of America |
| Monowai Seamount | 229 m | New Zealand |
| Kimmei Seamount | 232 m | United States Minor Outlying Islands |
| Lecointe Guyot | 253 m | Antarctica |
| Kōkō Seamount | 274 m | United States Minor Outlying Islands |
| Moua Pihaa | 279 m | French Polynesia |
| Great Meteor Seamount | 288 m | Portugal |
| Kammu Seamount | 291 m | United States Minor Outlying Islands |
| Māhukona | 306 m | United States of America |
| Minami-Hiyoshi Seamount | 335 m | Japan |
| Daikoku Seamount | 362 m | Northern Mariana Islands |
| Belgica Guyot | 374 m | Antarctica |
| Yūryaku Seamount | 387 m | United States Minor Outlying Islands |
| Piip | 441 m | Russia |
| Nikkō Seamount | 445 m | Japan |
| Capricorn Seamount | 495 m | Tonga |
| Louisville seamount chain | 499 m | New Zealand |
| Brown Bear Seamount | 517 m | Canada |
| Anton Dohrn Seamount | 535 m | United Kingdom |
| Rosemary Bank | 542 m | United Kingdom |
| Marsili | 550 m | Italy |
| Vailulu'u | 588 m | American Samoa |
| Wordie Seamount | 605 m | Antarctica |
| Northwest Rota | 641 m | Northern Mariana Islands |
| Kasuga Seamount | 648 m | Northern Mariana Islands |
| Barsukov Seamount | 665 m | South Georgia and the South Sandwich Islands |
| Orca Seamount | 716 m | Antarctica |
| Eratosthenes Seamount | 772 m | Akrotiri Sovereign Base Area |
| Havre Seamount | 782 m | New Zealand |
| Jingū Seamount | 788 m | United States of America |
| Ewing Seamount | 821 m | Namibia |
| Abbott Seamount | 832 m | United States Minor Outlying Islands |
| Indira Mount | 877 m | French Southern and Antarctic Lands |
| Suiko Seamount | 942 m | United States of America |
| Suiyō Seamount | 943 m | Japan |
| Denson Seamount | 953 m | United States of America |
| Caloosahatchee Seamount | 960 m | Canada |
| Nintoku Seamount | 964 m | United States of America |
| Tropic Seamount | 996 m | Morocco |
| Kama‘ehuakanaloa Seamount | 1,033 m | United States of America |
| Daikakuji Seamount | 1,037 m | United States Minor Outlying Islands |
| Bear Seamount | 1,102 m | United States of America |
| Umitaka Bank | 1,122 m | Antarctica |
| James Healy Seamount | 1,135 m | New Zealand |
| Limalok Guyot | 1,172 m | Marshall Islands |
| Bollons Seamount | 1,197 m | New Zealand |
| Ōjin Seamount | 1,207 m | United States of America |
| West Mata | 1,274 m | Samoa |
| Sylvania Tablemount | 1,296 m | Marshall Islands |
| Yōmei Seamount | 1,338 m | United States of America |
| Iselin Seamount | 1,351 m | Antarctica |
| Moai | 1,354 m | Chile |
| Brothers Seamount | 1,379 m | New Zealand |
| Davidson Seamount | 1,393 m | United States of America |
| New England Seamount Chain | 1,409 m | Canada |
| Axial Seamount | 1,420 m | Canada |
| Balanus Seamount | 1,440 m | Canada |
| Peirce Seamount | 1,467 m | United States of America |
| Cadamosto seamount | 1,473 m | Cape Verde |
| Eifuku Seamount | 1,481 m | Northern Mariana Islands |
| Detroit Seamount | 1,487 m | Russia |
| Teahitia | 1,551 m | French Polynesia |
| Boomerang Seamount | 1,726 m | French Southern and Antarctic Lands |
| Allegheny Seamount | 1,916 m | Canada |
| Horizon Guyot | 2,037 m | United States Minor Outlying Islands |
| Corner Rise Seamounts | 2,170 m | Canada |
| Colahan Seamount | 2,248 m | United States Minor Outlying Islands |
| Nieuwerkerk | 2,269 m | Indonesia |
| Vaughan Seamount | 2,340 m | Antarctica |
| Monaco Bank | 2,385 m | Portugal |
| Rocard | 2,386 m | French Polynesia |
| Mytilus Seamount | 2,397 m | United States of America |
| Balleny Seamounts | 2,398 m | Antarctica |
| Dallmann Seamount | 2,503 m | Antarctica |
| Buell Seamount | 2,673 m | United States of America |
| Bean Seamount | 2,695 m | Canada |
| Rosenthal Seamount | 2,838 m | Antarctica |
| Meiji Seamount | 3,009 m | Russia |
| Hancock Seamount | 3,175 m | United States Minor Outlying Islands |
| Tamu Massif | 3,179 m | Japan |
| Asterias Seamount | 3,322 m | Canada |
| Hodgkins Seamount | 3,353 m | United States of America |
| Yersey | 3,619 m | Indonesia |
| Lichtner Seamount | 3,777 m | Antarctica |
| Allison Guyot | 3,870 m | Marshall Islands |
| St. Helena Seamount chain | 4,144 m | Saint Helena |
| De Gerlache Seamounts | 4,248 m | Antarctica |
| Submarine 1922 | 4,587 m | Indonesia |
305 more seamounts and guyots
- Admiralty Guyot 451 m
- Aka Seamount 4,518 m
- Akopov Seamounts 1,565 m
- Algerine Seamount 3,815 m
- Almeida Carvalho Seamounts 2,229 m
- Almirante Saldanha Seamount 73 m
- Althoff Seamount 2,898 m
- Anashkin Seamount 1,729 m
- Andes Knolls 589 m
- Andromeda Seamount 2,817 m
- Aotea Seamount 918 m
- Araara Seamount 632 m
- Auriga Seamount 2,426 m
- Axthelm Seamount 2,914 m
- Bakin Seamount 3,227 m
- Ballance Seamount 783 m
- Bank of Galicia 1,443 m
- Barth Seamount 3,016 m
- Batu Buntunga 8 m
- Bayonnaise Seamount 44 m
- Behaim Seamount 3,888 m
- Berlin Seamount 2,296 m
- Betty Guyot 1,436 m
- Bicentenary Seamount 1,115 m
- Birma Seamount 3,189 m
- Bounty Seamount 606 m
- Brodie Seamount 1,916 m
- Brown Seamount 1,250 m
- Callum Seamount 1,819 m
- Calypso Vents 74 m
- Canopus Bank 50 m
- Cape Johnson Guyot 1,545 m
- Carpathia Seamount 2,506 m
- Caryn Seamount 2,984 m
- Cavalli Seamount 501 m
- Celestial Seamount 3,601 m
- Chelan Seamount 2,550 m
- Chella bank 68 m
- Christable Seamount 923 m
- Cole Seamount 1,240 m
- Combe Seamount 27 m
- Comstock Seamount 3,480 m
- Condor Reef 8 m
- Condor seamount 654 m
- Constantine Seamount 2,852 m
- Coquille Seamount 997 m
- Coral Patch Seamount 652 m
- Cotton Seamount 1,135 m
- Cowie Seamount 579 m
- Cross Seamount 380 m
- Crough Seamount 2,222 m
- Daiichi-Kashima Seamount 3,533 m
- Darwin Guyot 1,269 m
- Davidson Seamount 1,084 m
- Dellwood Seamount Chain 946 m
- Devonport Seamount 2,027 m
- Dickins Seamount 436 m
- Dipper Seamount 2,971 m
- Discovery Seamounts 423 m
- Dmitri Mendeleyev Seamount 825 m
- Dolphin Seamount 2,295 m
- Dosei Seamount 2,814 m
- Doyō Seamount 400 m
- Durgin Guyot 623 m
- East Gakkel Ridge at 85 E 2,960 m
- East Ngātoro Knoll 1,316 m
- Echo Bank 272 m
- Eickelberg Seamount 798 m
- Emerging Gaferut Seamount 1 m
- Émile Baudot seamount 102 m
- Endeavour Seamount 1,667 m
- Enmedio Volcano 1,694 m
- Enrique Guyot 1,682 m
- Erik Guyot 2,507 m
- Erimo Seamount 3,721 m
- Explorer Seamount 1,826 m
- Fani Maoré 1,172 m
- Feinga Seamount 353 m
- Fernandes Lopes Seamount 4,400 m
- Ferrel Seamount 581 m
- Field Seamount 70 m
- Forster Seamount 886 m
- Foundation Seamounts 2,479 m
- Francesc Pagès Seamount 99 m
- Frankfurt Guyot 2,162 m
- Frankfurt Seamount 3,210 m
- Fryer Guyot 1,265 m
- Gagarin Seamount 4,228 m
- Galicia Bank 589 m
- Galvez Banks 14 m
- Gamble Seamount 335 m
- Gascoyne Seamount 69 m
- George Bligh Bank 930 m
- Gerda Seamount 4,769 m
- Getsuyō Seamount 946 m
- Giacomini Seamount 659 m
- Gifford Guyot 2,411 m
- Giggenbach Seamount 130 m
- Gilbert Seamounts 1,423 m
- Giljanes Seamount 783 m
- Gilliss Seamount 2,209 m
- Glabro 309 m
- Gosnold Seamount 1,463 m
- Graham Seamount 1,823 m
- Graveyard Seamounts 880 m
- Gray Feather Bank 5 m
- Great Writers Seamount Province 4,221 m
- Green Seamount 1,864 m
- Gregg Seamount 913 m
- Griefswald Seamount 2,670 m
- Guide Seamount 1,756 m
- Gumdrop Seamount 899 m
- Haaheo Seamount 1,498 m
- Haedal Seamounts 1,565 m
- Hamburg Seamount 3,119 m
- Hammondsport Seamount 25 m
- Hatoma Knoll 1,422 m
- Hebrides Terrace Seamount 986 m
- Heck Seamount 1,580 m
- Heck Seamount Chain 1,057 m
- Heckle Seamount 1,366 m
- Heckle Seamount Chain 1,523 m
- Helen ES Clark Seamount 2,099 m
- Henry Seamount 3,005 m
- Hinetāpeka Seamount 100 m
- Hodgson Seamount 2,054 m
- Hollister Ridge 2,318 m
- Holyoake Seamount 2,725 m
- Hugo de Lacerda Seamount 2,624 m
- Hunter Bank 33 m
- Ichiyo Seamount 1,237 m
- Ikku Seamount 3,545 m
- Ioah Seamount 1,323 m
- Iroji Seamount 1,486 m
- Ita Mai Tai 1,350 m
- Iulia Mud Volcano 399 m
- Jasper Seamount 492 m
- Joseph Gilbert Seamount 2,448 m
- Kaikata Seamount 234 m
- Kaimei Seamount 3,160 m
- Kainan Maru Seamounts 1,868 m
- Kaiōsei Seamount 3,047 m
- Kana Keoki Seamount 685 m
- Karasik Seamount 604 m
- Kasuga 2 Seamount 347 m
- Kayō Seamount 1,058 m
- Kelvin Seamount 1,573 m
- Kibblewhite Seamount 1,046 m
- Kin'yō Seamount 869 m
- Kinsei Seamount 2,041 m
- Kita-Fukutokutai 137 m
- Kiwi Seamount 3,830 m
- Kiwi Seamount 929 m
- Kodiak Seamount 2,090 m
- Krylov Seamount 1,364 m
- Kyuya Seamount 3,670 m
- Lami Seamount 1,202 m
- Lazarev Seamount 1,048 m
- Le Danois Bank 454 m
- Lena Tablemount 249 m
- Lewis Seamount 1,599 m
- Litapooki Seamount 1,590 m
- Lo-En 950 m
- Lomilik 1,383 m
- Mackay-Bennett Seamount 2,455 m
- Magellan Seamounts 1,255 m
- Malumalu 199 m
- Manning Seamount 2,349 m
- Marion Seamount 400 m
- Meiōsei Seamount 2,531 m
- Michael Seamount 1,828 m
- Miller Seamount 1,040 m
- Mirai Seamount 2,288 m
- MIT Guyot 1,222 m
- Mogami Bank 5 m
- Mokusei Seamount 2,141 m
- Mokuyō Seamount 892 m
- Monte Cjavals 1,608 m
- Montmagny Seamount 3,703 m
- Moore Seamount 1,667 m
- Moore Seamount 2,917 m
- Morton Seamount 766 m
- Moser Seamount 2,398 m
- Mount Temple Seamount 2,890 m
- Muir Seamount 1,495 m
- Muldoon Seamount 2,895 m
- Myōjin Knoll 375 m
- N Fukuyama Seamount 1,361 m
- N Syoyo Seamount 554 m
- Nashville Seamount 2,352 m
- NE Nikko Seamount 445 m
- NEPDEP 7 Seamount 1,105 m
- NEPDEP 8 Seamount 1,202 m
- Newfoundland Seamounts 2,418 m
- Nichiyō Seamount 955 m
- Nikko Seamount - Active Hydrothermal Discharge 445 m
- Nishi-Kaiōsei Seamount 4,092 m
- Nishi-Tennosei Seamount 2,251 m
- Niuatahi 1,243 m
- Noroit Seamount 366 m
- NW Nikko Seamount 1,177 m
- NW Syoyo Seamount 1,287 m
- Ob Tablemount 256 m
- Oglala Seamount 1,823 m
- Orairuguron Seamount 8 m
- Ormonde 58 m
- Orphan Seamount 1,937 m
- Orphan Seamount and Knoll Province 3,484 m
- Osbourn Seamount 1,949 m
- Oshawa Seamount 1,823 m
- Pako Guyot 1,380 m
- Panov Seamount 1,059 m
- Panulirus Seamount 3,945 m
- Pao Pao Seamount 253 m
- Parea Guyot 1,899 m
- Pedro Nunes Seamounts 3,753 m
- Physalia Seamount 1,880 m
- Picket Seamount 1,835 m
- Pioneer Seamount 899 m
- Pito Seamount 2,118 m
- Pogisa Seamount 979 m
- Porto Hill Seamount 1,869 m
- Pratt Guyot 727 m
- President Jackson Seamounts 1,523 m
- Rehoboth Seamount 1,242 m
- Resolution Guyot 1,266 m
- Retriever Seamount 1,924 m
- Rivadeneyra Shoal 2,682 m
- Rochambeau Bank 85 m
- Rodriguez Seamount 646 m
- Rosa Seamount 587 m
- Rose-Marie Thompson Seamount 1,354 m
- Rungapapa Knoll 120 m
- Ruwitūn̄tūn̄ 1,266 m
- Ryunosuke Seamount 4,622 m
- S Fukuyama Seamount 1,361 m
- Sahara Seamounts 3,766 m
- Saint-Exupéry Guyot 511 m
- San Pablo Seamount 1,453 m
- Sanpuku Seamount 558 m
- Schoppe Ridge 1,925 m
- Scott Seamount 1,027 m
- Scott Seamount Chain 1,291 m
- Scott Seamounts 435 m
- Screech Seamount 3,018 m
- Scruncheon Seamount 2,438 m
- Sedlo Seamount 2,627 m
- Seewarte Seamounts 3,792 m
- Seminole Seamount 2,382 m
- Sheldrake Seamount 2,213 m
- Shimada Seamount 356 m
- Shredder Seamount 2,851 m
- Siafiafi Seamount 3,211 m
- Sirius Seamount 1,704 m
- South Chamorro Seamount 6,414 m
- South Kermadec Ridge Seamounts 1,793 m
- Sovereign Seamount 2,019 m
- Springfield Seamount 958 m
- Stingray Shoal 127 m
- Stirni Seamount 1,843 m
- SW Syoyo Seamount 1,478 m
- Syoyo Seamount 488 m
- Tafu-Maka 1,441 m
- Takuyo-Daini 1,418 m
- Takuyo-Daisan 1,423 m
- Taranui Seamount 1,497 m
- Tarava Seamounts 997 m
- Tasmanian Seamounts 752 m
- Ten'nōsei Seamount 1,179 m
- Tenji Seamount 2,048 m
- The Paps 1,567 m
- Titan Ridge Volcano 245 m
- Tokashiki Seamount 3,322 m
- Touten Seamount 3,316 m
- Tuba Seamount 393 m
- Tucker Seamount 3,174 m
- Tuscarora Seamount 1 m
- Tuzo Wilson Seamounts 1,609 m
- Ufiata Seamount 832 m
- Union Seamount 2,927 m
- Unnamed submarine volcano 2,718 m
- Unnamed submarine volcano 276 m
- Unnamed submarine volcano 62 m
- Unnamed submarine volcano 137 m
- Unnamed submarine volcano in the eastern Pacific Ocean 2,513 m
- Unnamed submarine volcano in the Pacific Ocean 2,621 m
- Unnamed volcano 70 m
- Unnamed volcano 954 m
- Vercelli Seamount 92 m
- Vesteris Seamount 258 m
- Vityaz Seamount 2,455 m
- Vlinder Guyot 777 m
- Vogel Seamount 1,309 m
- W Syoyo Seamount 1,786 m
- Walls Seamount 3,674 m
- Wangdayuan Seamount 1,506 m
- Warwick Seamount 516 m
- Welker Guyot 747 m
- Weta Guyot 2,235 m
- Whakatāne Seamount 916 m
- Wright Seamounts 925 m
- Yokosuka Seamount 783 m
- Yunov Seamount 464 m
- Zamami Seamount 3,595 m
- Zasosov 191 m
Ocean basins (110)
An ocean basin is a large bowl of deep seabed bounded by ridges, rises or continental slopes.
| Name | Depth | Nearest country |
|---|---|---|
| Angola Basin | 5,546 m | Angola |
| Agulhas Basin | 5,164 m | South Africa |
| Argentine Basin | 5,156 m | Brazil |
| Wharton Basin | 5,041 m | Australia |
| Southeast Pacific Basin | 4,918 m | Antarctica |
| Atlantic-Indian Basin | 4,802 m | Antarctica |
| South Fiji Basin | 4,577 m | Fiji |
| West Caroline Basin | 4,506 m | French Polynesia |
| Arabian Basin | 4,429 m | India |
| Nauru Basin | 4,273 m | Nauru |
| Aleutian Basin | 3,832 m | United States of America |
| Canada Basin | 3,796 m | United States of America |
| Nansen Basin | 3,669 m | Russia |
| Commander Basin | 3,640 m | Russia |
| Tyrrhenian Basin | 3,624 m | Italy |
| Alaska Plain | 3,561 m | United States of America |
| Balleny Basin | 3,134 m | Antarctica |
| Grenada Basin | 2,986 m | Saint Vincent and the Grenadines |
| Amerasian Basin | 2,815 m | Russia |
| Adare Basin | 2,248 m | Antarctica |
| Lau Basin | 1,975 m | Fiji |
| Tsushima Basin | 1,872 m | South Korea |
| Amundsen Basin | 1,402 m | Canada |
| Makarov Basin | 1,206 m | Russia |
| Sulzberger Basin | 1,062 m | Antarctica |
| Drygalski Basin | 931 m | Antarctica |
| Dibble Basin | 790 m | Antarctica |
| Colbeck Basin | 708 m | Antarctica |
| Glomar Challenger Basin | 650 m | Antarctica |
| Delfin Basin | 531 m | Mexico |
| Eurasian Basin | 369 m | Greenland |
| Fundy Basin | 67 m | Canada |
78 more ocean basins
- Acheron Basin 210 m
- Algerian-Provençal Basin 1,989 m
- Australian-Antarctic Basin 4,651 m
- Baffin Basin 2,295 m
- Barrow Basin 324 m
- Bauza Basin 188 m
- Bellingshausen Basin 5,061 m
- Black Basin 49 m
- Bligh Basin 2,558 m
- Boundary Basin 218 m
- Canary Basin 5,364 m
- Cascadia Basin 2,746 m
- Central Basin 1,920 m
- Crowell Basin 240 m
- Cumberland Basin 1,057 m
- Dale Basin 2,497 m
- Deepwater Basin 17 m
- Dellwood Basin 2,453 m
- Desbarats Basin 329 m
- Digges Basin 463 m
- Downing Basin 156 m
- Ekström Basin 349 m
- Elder Basin 195 m
- Emerald Basin 175 m
- Fiordland Basin 4,394 m
- Franklin Basin 231 m
- Frobisher Basin 457 m
- George Basin 746 m
- Georges Basin 361 m
- Granaway Deep 15 m
- Grand Manan Basin 192 m
- Guiana Basin 4,831 m
- Guinea Basin 5,107 m
- Hall Basin 2,555 m
- Herodotus Basin 3,122 m
- Herschel Basin 43 m
- Hooker Basin 218 m
- Howell Basin 202 m
- Hudson Basin 200 m
- Iceland Basin 2,783 m
- Jelbart Basin 1,390 m
- Jordan Basin 237 m
- Kuril Basin 3,335 m
- Labrador Basin 3,505 m
- LaHave Basin 249 m
- Larsen Basin 524 m
- Lindenkohl Basin 226 m
- Little America Basin 649 m
- Los Alamitos Retarding Basin 770 m
- Lougheed Basin 467 m
- Lougheed Island Basin 493 m
- Lyall Basin 543 m
- Murr Basin 94 m
- Newfoundland Basin 4,868 m
- Newport Submarine Canyon 71 m
- Northeast Pacific Basin 5,013 m
- Parece Vela Basin 4,638 m
- Pitt's Deep 13 m
- Quar Basin 1,206 m
- Riiser-Larsen Basin 413 m
- Rockall Trough 2,755 m
- Rodgers Basin 207 m
- Ronne Basin 520 m
- Roseway Basin 171 m
- Sechelt Basin 172 m
- St Anthony Basin 464 m
- Tasman Basin 4,833 m
- The Bull Pen 163 m
- The Cow Pen 189 m
- The Heart 173 m
- Tusket Basin 225 m
- Utah Basin 304 m
- Venezuela Basin 5,062 m
- Weddell Basin 5,264 m
- Weiken Basin 2,029 m
- Whale Deep 107 m
- Wilmot Basin 71 m
- Winona Basin 2,096 m
Oceanic plateaus (25)
An oceanic plateau is a broad, raised area of the seabed that stands well above the deep ocean floor around it.
| Name | Depth | Nearest country |
|---|---|---|
| Maud Rise | 3,526 m | Antarctica |
| Magellan Rise | 3,167 m | United States Minor Outlying Islands |
| Ontong Java Plateau | 2,948 m | Solomon Islands |
| Hikurangi Plateau | 2,802 m | New Zealand |
| Wallaby Plateau | 2,792 m | Australia |
| Naturaliste Plateau | 2,088 m | Australia |
| Zenith Plateau | 1,959 m | Australia |
| Manihiki Plateau | 1,905 m | Cook Islands |
| Iceland Plateau | 1,838 m | Iceland |
| Broken Ridge | 1,483 m | Australia |
| Rockall plateau | 1,342 m | United Kingdom |
| Exmouth Plateau | 960 m | Australia |
| Blake Plateau | 776 m | United States of America |
| Kerguelen Plateau | 634 m | French Southern and Antarctic Lands |
| Campbell Plateau | 546 m | New Zealand |
| Challenger Plateau | 500 m | New Zealand |
| Chukchi Cap | 292 m | United States of America |
| Mascarene Plateau | 280 m | Mauritius |
| Bounty Plateau | 220 m | New Zealand |
6 more oceanic plateaus
- Las Palmas 63 m
- Northland Plateau 1,665 m
- Puysegur Plateau 163 m
- Three Kings Plateau 3,450 m
- Vøring Plateau 1,331 m
- West Caroline Rise 2,906 m
Fracture zones (29)
A fracture zone is a long scar in the seabed, where blocks of ocean crust on either side of a ridge have slid past each other.
| Name | Depth | Nearest country |
|---|---|---|
| Diamantina Fracture Zone | 5,534 m | Australia |
| Clarion-Clipperton Zone | 5,133 m | French Polynesia |
| Fifteen-Twenty Fracture Zone | 4,993 m | France |
| Vinogradov Fracture Zone | 4,801 m | South Georgia and the South Sandwich Islands |
| Walton fault zone | 4,603 m | Jamaica |
| Hero Fracture Zone | 4,561 m | Antarctica |
| Kosminskaya Fracture Zone | 4,547 m | South Georgia and the South Sandwich Islands |
| Chile Fracture Zone | 4,212 m | Chile |
| Shackleton Fracture Zone | 4,171 m | Antarctica |
| Charlie-Gibbs Fracture Zone | 4,013 m | Portugal |
| Emerald Fracture Zone | 3,847 m | Antarctica |
| Heirtzler Fracture Zone | 2,946 m | Antarctica |
| Antipodes Fracture Zone | 2,776 m | Antarctica |
| Sovanco Fracture Zone | 2,460 m | Canada |
| Balleny Fracture Zone | 2,420 m | Antarctica |
| Pitman Fracture Zone | 2,341 m | Antarctica |
| Hjort Fracture Zone | 1,830 m | Antarctica |
12 more fracture zones
- Bight Fracture Zone 3,337 m
- Cook Fracture Zone 4,243 m
- Julia Fracture Zone 4,304 m
- Lindsey Fracture Zone 4,019 m
- Mendocino Fracture Zone 2,340 m
- Pico Fracture Zone 4,698 m
- Romanche Fracture Zone 4,556 m
- Saint-Exupéry Fracture Zone 2,937 m
- South Sandwich Fracture Zone 4,972 m
- Terror Fracture Zone 2,141 m
- Tjornes Fracture Zone 30 m
- Vening Meinesz Fracture Zone 3,415 m
Submarine canyons (173)
Submarine canyons are steep valleys cut into the continental slope, often by rivers of sediment-laden water that flow downhill under the sea.
| Name | Depth | Nearest country |
|---|---|---|
| Titanic Canyon | 3,586 m | Canada |
| Whittard Canyon | 3,547 m | Ireland |
| Ross Canyon | 3,489 m | Antarctica |
| Nazaré Canyon | 3,286 m | Portugal |
| Wegener Canyon | 3,258 m | Antarctica |
| Pribilof Canyon | 2,939 m | United States of America |
| Delgada Submarine Canyon | 2,935 m | United States of America |
| Oates Canyon | 2,587 m | Antarctica |
| Great Bahama Canyon | 2,536 m | The Bahamas |
| Zhemchug Canyon | 2,343 m | United States of America |
| Bering Canyon | 2,326 m | United States of America |
| Avilés Canyon | 1,889 m | Spain |
| Bowie Canyon | 1,581 m | United States of America |
| Quinault Canyon | 1,573 m | United States of America |
| San Antonio Canyon | 1,337 m | Chile |
| Kaikōura Canyon | 1,312 m | New Zealand |
| Perth Canyon | 1,124 m | Australia |
| Juan de Fuca Canyon | 1,002 m | United States of America |
| Quileute Canyon | 848 m | United States of America |
| Congo Canyon | 815 m | Angola |
| Mississippi Canyon | 572 m | United States of America |
| The Gully | 359 m | Canada |
| Amazon Canyon | 264 m | Brazil |
| Danube Canyon | 246 m | Romania |
| Hudson Canyon | 184 m | United States of America |
| Barrow Canyon | 99 m | United States of America |
| Monterey Canyon | 29 m | United States of America |
146 more submarine canyons
- Aiguilles Canyon 1,053 m
- Albatross Canyon 577 m
- Antarctic Canyon 3,484 m
- Arawhata Canyon 1,254 m
- Aurora Canyon 3,590 m
- Baeyer Canyon 2,465 m
- Barkley Canyon 803 m
- Bonnécamps Canyon 1,338 m
- Breaksea Canyon 1,851 m
- Brodie Canyon 694 m
- Buffon Canyon 2,785 m
- Cameron Canyon 745 m
- Carmel Canyon 277 m
- Carson Canyon 468 m
- Cascade Canyon 1,249 m
- Charcot Canyon 4,177 m
- Clayoquot Canyon 894 m
- Clifford Smith Canyon 867 m
- Colville Canyon 1,826 m
- Cook Canyon 1,484 m
- Cook Strait Canyon 1,157 m
- Corsair Canyon 762 m
- Crowther Canyon 581 m
- Cuvier Canyon 2,903 m
- Daly Canyon 3,816 m
- Dawson Canyon 503 m
- Denys Canyon 485 m
- DesBarres Canyon 2,147 m
- Deutschland Canyon 3,135 m
- Drygalski Canyon 4,172 m
- Eia Canyon 844 m
- Endurance Canyon 3,723 m
- Esperanza Canyon 926 m
- Father Charles Canyon 852 m
- Fimbul Canyon 2,222 m
- Fosse de Capbreton 100 m
- Foulwind Canyon 1,200 m
- Francisco Canyon 138 m
- Gira Canyon 462 m
- Gouf de Capbreton 313 m
- Guy Canyon 432 m
- Haast Canyon 1,100 m
- Haldimand Canyon 1,347 m
- Hauraki Canyon 1,114 m
- Hikurua / de Surville Canyon 1,536 m
- Hillary Canyon 3,570 m
- Hokitika Canyon 1,460 m
- Honeycomb Canyons 682 m
- Hoyles Canyon 192 m
- Hurunui Canyon 797 m
- Hydrographer Canyon 566 m
- Jackman Canyon 159 m
- Jackson Canyon 1,068 m
- Jukes Canyon 1,276 m
- Jussieu Canyon 3,010 m
- Kaipara Canyon 701 m
- Kapiti Seavalley 150 m
- Karetu Canyons 599 m
- Karitāne Canyon 1,050 m
- Kettle Canyon 251 m
- Koppe Canyon 2,928 m
- Kushiro Submarine Canyon 2,503 m
- Kwakiutl Canyon 914 m
- Kyuquot Canyon 635 m
- Lamarck Canyon 2,936 m
- Le Trou sans Fond 250 m
- Lena Canyon 3,428 m
- Lilly Canyon 111 m
- Logan Canyon 393 m
- Loudoun Canyon 1,031 m
- Lydonia Canyon 540 m
- Madden Canyon 1,775 m
- Māhia Canyon 1,852 m
- Marie Byrd Canyon 3,819 m
- Markham Canyon 327 m
- Mason Canyon 417 m
- Matheson Canyon 2,852 m
- Mawson Canyon 4,473 m
- Michael Keen Canyon 1,736 m
- Mikhailov Canyon 3,368 m
- Milford Basin 3,668 m
- Milford Canyon 1,251 m
- Moeraki Canyon 960 m
- Moeraki Canyon 1,044 m
- Mokohīnau Canyon 1,156 m
- Molyneux Canyon 560 m
- Murray Canyon 2,811 m
- Neumayer Canyon 2,230 m
- Ngātoro Canyon 1,737 m
- Nicholson Canyon 523 m
- Nitinat Canyon 1,018 m
- Northwest Atlantic Mid-Ocean Canyon 3,829 m
- Ob' Canyon 3,418 m
- Oceanographer Canyon 760 m
- Okains Canyon 723 m
- Ōpouawe Canyon 1,140 m
- Ououkinsh Canyon 1,058 m
- Pāhaoa Canyon 1,542 m
- Palliser Canyon 1,068 m
- Papanui Canyon 731 m
- Pārengarenga Canyons 1,142 m
- Philippi Canyon 3,213 m
- Pisces Canyon 1,382 m
- Pobeda Canyon 2,240 m
- Posadovsky Canyon 1,842 m
- Pūkākī Canyon 212 m
- Pukekura Canyon 865 m
- Puketūroto / Hoopers Channel 889 m
- Putulik Canyon 258 m
- Quatsino Canyon 1,309 m
- Rakitū Canyon 1,070 m
- Ranfurly Canyon 549 m
- Rekohu Canyon 2,498 m
- Ritscher Canyon 3,728 m
- San Martin Canyon 3,850 m
- Sanae Canyon 4,120 m
- Saunders Canyon 635 m
- Schwabenland Canyon 4,748 m
- Scott Canyon 2,184 m
- Secretary Canyon 3,090 m
- Shackleton Canyon 3,037 m
- Shortland Canyon 1,505 m
- Sutherland Canyon 2,742 m
- Taieri Canyon 795 m
- Tataweka Canyon 1,243 m
- Taumoana Canyon 1,519 m
- Tauranga Canyon 897 m
- Tokomairaro Canyon 862 m
- Treworgie Canyon 1,128 m
- Tully Canyon 187 m
- Tūranganui Valley 1,302 m
- Uruguay Canyon 3,693 m
- Verrill Canyon 408 m
- Viti Canyons 503 m
- Waiatoto Canyon 2,546 m
- Wairarapa Canyon 589 m
- Waitaki Canyon 715 m
- Waria Canyon 1,211 m
- Whakaari / White Island Canyon 732 m
- Whitbourne Canyon 1,337 m
- Wild Canyon 3,347 m
- Wilkins Canyon 2,925 m
- Wilson Canyon 2,630 m
- Yates Canyon 1,907 m
- Yelcho Canyon 3,916 m
- Zavadovsky Canyon 3,648 m
Abyssal plains (18)
An abyssal plain is a vast, flat stretch of deep seabed, built up over millions of years as fine sediment settles from above.
| Name | Depth | Nearest country |
|---|---|---|
| Argentine Abyssal Plain | 6,118 m | Falkland Islands |
| Sohm Abyssal Plain | 5,528 m | Bermuda |
| Madeira Abyssal Plain | 5,403 m | Portugal |
| Amundsen Plain | 4,900 m | Antarctica |
| Bellingshausen Plain | 4,740 m | Antarctica |
| Weddell Plain | 4,740 m | Antarctica |
| Boreas Plain | 3,069 m | Norway |
| Greenland Plain | 2,954 m | Norway |
10 more abyssal plains
- Biscay Abyssal Plain 4,846 m
- Canada Abyssal Plain 3,848 m
- Chukchi Abyssal Plain 2,102 m
- Fletcher Abyssal Plain 3,899 m
- Juan de Fuca Abyssal Plain 2,792 m
- Kupe Abyssal Plain 4,205 m
- Mendeleyev Abyssal Plain 3,328 m
- Ross Sea Abyssal Plain 4,209 m
- Tufts Abyssal Plain 4,320 m
- Valdivia Abyssal Plain 4,088 m
58 Wikidata items whose listed point is on land were left out. Oceans and seas · Drain the oceans