Amundsen Sea at a glance
- 603 maverage depth
- 585 mmedian depth
- 1,654 mmaximum depth
- 75,199 km²water area
Amundsen Sea is a sea. Inside its outline the GEBCO grid has about 75,199 km² of water, with an average depth of about 603 m (the middle value is 585 m) and a maximum of 1,654 m, found at 74.19° S, 105.64° W.
Open the map at the deepest cell and tap to read the depth.
How deep is each part of the Amundsen Sea?
The bar splits the Amundsen Sea's water by depth. Each colour is a depth band, and the shares add up to 100%.
- 0 to 200 m: 3.4%
- 200 to 1,000 m: 90.5%
- 1,000 to 4,000 m: 6.1%
- 4,000 to 6,000 m: 0%
- below 6,000 m: 0%
Named features near the deepest point: Rosenthal Seamount (687 km), Dallmann Seamount (843 km), Lecointe Guyot (1,118 km), Belgica Guyot (1,120 km).
The Amundsen Sea if sea level dropped
The slider on the map lowers the sea in steps. This table shows how much of the Amundsen Sea's water would be land at each step.
| Sea level lowered by | Becomes land | Share of its water |
|---|---|---|
| 10 m | 135 km² | 0.2% |
| 20 m | 242 km² | 0.3% |
| 50 m | 524 km² | 0.7% |
| 80 m | 768 km² | 1% |
| 120 m | 1,099 km² | 1.5% |
| 200 m | 2,565 km² | 3.4% |
| 500 m | 25,929 km² | 34.5% |
| 1,000 m | 70,589 km² | 93.9% |
| 2,000 m | 75,199 km² | 100% |
| 3,000 m | 75,199 km² | 100% |
| 4,000 m | 75,199 km² | 100% |
| 6,000 m | 75,199 km² | 100% |
A simple bathtub model: it lowers the sea everywhere by the same amount and does not simulate how water would really drain.
Nearby seas
- Bellingshausen Sea average depth about 524 m
- Weddell Sea average depth about 1,552 m
- Ross Sea average depth about 2,026 m
- Davis Sea average depth about 1,562 m
- Tasman Sea average depth about 3,360 m
- Great Australian Bight average depth about 3,184 m
Nearest by the centre of each outline. All oceans and seas
Frequently asked questions
How deep is the Amundsen Sea?
On average about 603 m in the GEBCO grid (the middle value is 585 m). The deepest cell inside its outline is 1,654 m, at 74.19° S, 105.64° W.
How big is the Amundsen Sea?
About 75,199 km² of water inside its Natural Earth outline, counted from the grid cells that are below sea level.
How much of the Amundsen Sea would be land if sea level dropped?
With the sea 80 m lower, about 768 km² (1%) of its water would be land. At 6,000 m lower, 100% would be. This is a simple bathtub model that lowers the sea evenly everywhere.
Data: depths from the GEBCO_2026 grid, statistics worked out inside the Natural Earth outline of the sea. See data sources and licences. The GEBCO Grid should NOT be used for navigation or for any other purpose involving safety at sea.