West, central and east pools
in the Mariana Trench
Witjastief in the east pool
A deep sea is a (very) deep part of the ocean . The measurement of these is called bathymetry . In contrast to the mostly very elongated deep- sea channel (deep-sea trench), a sea depression is only a very small area of the lake, which is partly located in such a channel or in a deep-sea basin and can be viewed as the opposite of a very high mountain .
See also: List of deep sea trenches and ridges
Sorted at sea lows
Examples of sea lows in the ocean and its tributaries :
( There are no lows in the Southern Ocean, but there are deep-sea basins .)
Surname
Depth ( m )
ocean
Geo coordinates
Location in deep sea trenches or basins
comment
Berlin low
6,840
Indian Ocean
! 486.0000005614.0000005 14 ° 0 ′ 0 ″ S, 114 ° 0 ′ 0 ″ E
North Australian Basin
Byrdtief
8,582
Pacific Ocean
! 442.0001105677.9996075 58 ° 0 ′ 0 ″ S, 177 ° 59 ′ 59 ″ E
South Pacific Basin
Calypso low
5,267
Atlantic Ocean
! 536.5666675521.1333335 36 ° 34 ′ 0 ″ N, 21 ° 8 ′ 0 ″ E
Ionic basin
deepest point in the Mediterranean
Cape Johnson Low
10,497
Pacific Ocean
! 511.0000005627.0000005 11 ° 0 ′ 0 ″ N, 127 ° 0 ′ 0 ″ E
Philippines Trench
Challenger low
10,984
Pacific Ocean
! 511.3263445642.1872485 11 ° 19 ′ 35 "N, 142 ° 11 ′ 14" E
Mariana Trench
Dordrechttief
7100
Indian Ocean
! 466.5800005601.4800005 33 ° 25 ′ 12 ″ S, 101 ° 28 ′ 48 ″ E
Southeast Indian Basin
lowest point of the Diamantina Fracture Zone
Emden deep
10,400
Pacific Ocean
! 509.0000005627.0000005 9 ° 0 ′ 0 ″ N, 127 ° 0 ′ 0 ″ E
Philippines Trench
Galatian Low
10,540
Pacific Ocean
! 512.0000005627.0000005 12 ° 0 ′ 0 ″ N, 127 ° 0 ′ 0 ″ E
Philippines Trench
Hilgardtief
7,315
Pacific Ocean
! 497.0000005335.0000005 3 ° 0 ′ 0 ″ S, 165 ° 0 ′ 0 ″ W.
Phoenix moat
Horizon
10,647
Pacific Ocean
! 475.0000005325.0000005 25 ° 0 ′ 0 ″ S, 175 ° 0 ′ 0 ″ W.
Tonga trench
Jeffreytief
5,998
Indian Ocean
! 462.0000005633.0000005 38 ° 0 ′ 0 ″ S, 133 ° 0 ′ 0 ″ E
South Australian Basin
Landsorttief
459
Atlantic Ocean
! 558.5833335518.2333335 58 ° 35 ′ 0 ″ N, 18 ° 14 ′ 0 ″ E
western Gotland Basin
deepest point in the Baltic Sea
Litketief
5,449
Arctic Ocean
! 582.4000005519.5166675 82 ° 24 ′ 0 ″ N, 19 ° 31 ′ 0 ″ E
Meteor depth
8,264
Atlantic Ocean
! 444.3333335474.0833335 55 ° 40 ′ 0 ″ S, 25 ° 55 ′ 0 ″ W.
South Sandwich Trench
Discovered in
1920 by the research ship Meteor
Milne Edwards Low
6.262
Pacific Ocean
! 491.6500005418.5833405 8 ° 21 ′ 0 ″ S, 81 ° 25 ′ 0 ″ W.
Pergraben
Milwaukee Deep
8,376
Atlantic Ocean
! 519.5833335433.5000005 19 ° 35 ′ 0 ″ N, 66 ° 30 ′ 0 ″ W.
Puerto Rico Trench
deepest point in the Atlantic
Molloy deep
5,669
Arctic Ocean
! 579.1416705502.7833305 79 ° 8 ′ 30 ″ N, 2 ° 47 ′ 0 ″ E
deepest point in the Arctic Ocean, at the interface between the Greenland Sea and the Arctic Ocean
Norwegian gutter
725
Atlantic Ocean
Norwegian gutter
deepest point in the North Sea
Planet deep
9,142
Pacific Ocean
! 493.0000005654.0000005 7 ° 0 ′ 0 ″ S, 154 ° 0 ′ 0 ″ E
Neupommern-Bougainville-Graben
deepest point of the New Pomerania Bougainville Trench
Ramapo Low
10,554
Pacific Ocean
! 531.0000005642.0000005 31 ° 0 ′ 0 ″ N, 142 ° 0 ′ 0 ″ E
Boning dig
Siren low
10,714
Pacific Ocean
! 512.0654005644.5811305 12 ° 3 ′ 55 "N, 144 ° 34 ′ 52" E
Mariana Trench
Discovered in 1997 through sonar measurements by the Hawaii Mapping Research Group
Spencer F. Byrd Depth
8,065
Pacific Ocean
! 477.0000005429.0000005 23 ° 0 ′ 0 ″ S, 71 ° 0 ′ 0 ″ W.
Atacama Trench
Trieste low
10,916
Pacific Ocean
! 514.0000005647.0000005 14 ° 0 ′ 0 ″ N, 147 ° 0 ′ 0 ″ E
Mariana Trench
Webertief
7,440
Pacific Ocean
! 494.0000005631.0000005 6 ° 0 ′ 0 ″ S, 131 ° 0 ′ 0 ″ E
in the east of the Banda Sea
Witjastief 1
11,034
Pacific Ocean
! 511.3166675642.2500005 11 ° 19 ′ 0 ″ N, 142 ° 15 ′ 0 ″ E
Mariana Trench
is considered the deepest part of the world's oceans; however, the value of 11,034 m sea depth measured in 1957 is questioned
Witjastief 2
10,882
Pacific Ocean
! 477.0552785325.2669445 22 ° 56 ′ 41 ″ S, 174 ° 43 ′ 59 ″ W.
Tonga trench
deepest point in the Tonga Trench
Witjastief 3
10,542
Pacific Ocean
! 544.0000005651.0000005 44 ° 0 ′ 0 ″ N, 151 ° 0 ′ 0 ″ E
Kuril Trench
deepest point in the Kuril Trench
Witjastief 4
10,047
Pacific Ocean
! 468.0000005323.0000005 32 ° 0 ′ 0 ″ S, 177 ° 0 ′ 0 ″ W.
Kermadec Trench
deepest point in the Kermadec trench
Map of the north polar deep sea trenches
Individual evidence
↑ Sea floor survey reveals deep hole , at news.bbc.co.uk
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