Coral Sea at a glance
- 2,553 maverage depth
- 2,576 mmedian depth
- 9,142 mmaximum depth
- 4 million km²water area
Coral Sea is a sea. Inside its outline the GEBCO grid has about 4 million km² of water, with an average depth of about 2,553 m (the middle value is 2,576 m) and a maximum of 9,142 m, found at 12.47° S, 165.92° E.
Open the map at the deepest cell and tap to read the depth.
How deep is each part of the Coral Sea?
The bar splits the Coral Sea's water by depth. Each colour is a depth band, and the shares add up to 100%.
- 0 to 200 m: 9.7%
- 200 to 1,000 m: 7.9%
- 1,000 to 4,000 m: 61.3%
- 4,000 to 6,000 m: 20.5%
- below 6,000 m: 0.6%
Named features near the deepest point: South Solomon Trench (225 km), Hammondsport Seamount (723 km), New Hebrides Trench (866 km), Unnamed submarine volcano (948 km).
The Coral Sea if sea level dropped
The slider on the map lowers the sea in steps. This table shows how much of the Coral Sea's water would be land at each step.
| Sea level lowered by | Becomes land | Share of its water |
|---|---|---|
| 10 m | 25,581 km² | 0.6% |
| 20 m | 70,417 km² | 1.8% |
| 50 m | 228,250 km² | 5.8% |
| 80 m | 335,976 km² | 8.5% |
| 120 m | 362,575 km² | 9.1% |
| 200 m | 384,001 km² | 9.7% |
| 500 m | 514,597 km² | 13% |
| 1,000 m | 696,207 km² | 17.5% |
| 2,000 m | 1.4 million km² | 36.1% |
| 3,000 m | 2.4 million km² | 59.9% |
| 4,000 m | 3.1 million km² | 78.8% |
| 6,000 m | 3.9 million km² | 99.4% |
A simple bathtub model: it lowers the sea everywhere by the same amount and does not simulate how water would really drain.
Nearby seas
- Solomon Sea average depth about 2,825 m
- Bismarck Sea average depth about 1,629 m
- Gulf of Carpentaria average depth about 41 m
- Tasman Sea average depth about 3,360 m
- Arafura Sea average depth about 191 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 Coral Sea?
On average about 2,553 m in the GEBCO grid (the middle value is 2,576 m). The deepest cell inside its outline is 9,142 m, at 12.47° S, 165.92° E.
How big is the Coral Sea?
About 4 million km² of water inside its Natural Earth outline, counted from the grid cells that are below sea level.
How much of the Coral Sea would be land if sea level dropped?
With the sea 20 m lower, about 70,417 km² (1.8%) of its water would be land. At 6,000 m lower, 99.4% 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.