Seno Otway at a glance
- 116 maverage depth
- 93 mmedian depth
- 454 mmaximum depth
- 1,839 km²water area
Seno Otway is a sound. Inside its outline the GEBCO grid has about 1,839 km² of water, with an average depth of about 116 m (the middle value is 93 m) and a maximum of 454 m, found at 53.19° S, 71.98° W.
Open the map at the deepest cell and tap to read the depth.
How deep is each part of the Seno Otway?
The bar splits the Seno Otway's water by depth. Each colour is a depth band, and the shares add up to 100%.
- 0 to 200 m: 85%
- 200 to 1,000 m: 15%
- 1,000 to 4,000 m: 0%
- 4,000 to 6,000 m: 0%
- below 6,000 m: 0%
Named features near the deepest point: Hero Fracture Zone (990 km), Phoenix Ridge (1,041 km), Shackleton Fracture Zone (1,051 km), Monte Cjavals (1,271 km).
The Seno Otway if sea level dropped
The slider on the map lowers the sea in steps. This table shows how much of the Seno Otway's water would be land at each step.
| Sea level lowered by | Becomes land | Share of its water |
|---|---|---|
| 10 m | 122 km² | 6.6% |
| 20 m | 204 km² | 11.1% |
| 50 m | 529 km² | 28.7% |
| 80 m | 799 km² | 43.5% |
| 120 m | 1,095 km² | 59.5% |
| 200 m | 1,563 km² | 85% |
| 500 m | 1,839 km² | 100% |
| 1,000 m | 1,839 km² | 100% |
| 2,000 m | 1,839 km² | 100% |
| 3,000 m | 1,839 km² | 100% |
| 4,000 m | 1,839 km² | 100% |
| 6,000 m | 1,839 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
- Amundsen Sea average depth about 603 m
- Ross Sea average depth about 2,026 m
- Davis Sea average depth about 1,562 m
- Caribbean Sea average depth about 2,547 m
Nearest by the centre of each outline. All oceans and seas
Frequently asked questions
How deep is the Seno Otway?
On average about 116 m in the GEBCO grid (the middle value is 93 m). The deepest cell inside its outline is 454 m, at 53.19° S, 71.98° W.
How big is the Seno Otway?
About 1,839 km² of water inside its Natural Earth outline, counted from the grid cells that are below sea level.
How much of the Seno Otway would be land if sea level dropped?
With the sea 10 m lower, about 122 km² (6.6%) 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 sound. See data sources and licences. The GEBCO Grid should NOT be used for navigation or for any other purpose involving safety at sea.