Bo Hai at a glance
- 18 maverage depth
- 18 mmedian depth
- 492 mmaximum depth
- 76,468 km²water area
Bo Hai is a sea. Inside its outline the GEBCO grid has about 76,468 km² of water, with an average depth of about 18 m (the middle value is 18 m) and a maximum of 492 m, found at 37.65° N, 119.11° E.
Open the map at the deepest cell and tap to read the depth.
How deep is each part of the Bo Hai?
The bar splits the Bo Hai's water by depth. Each colour is a depth band, and the shares add up to 100%.
- 0 to 200 m: 100%
- 200 to 1,000 m: 0%
- 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: Tsushima Basin (1,118 km), Jeffrey Deep (1,220 km), Yamato Ridge (1,394 km), Hatoma Knoll (1,490 km).
The Bo Hai if sea level dropped
The slider on the map lowers the sea in steps. This table shows how much of the Bo Hai's water would be land at each step.
| Sea level lowered by | Becomes land | Share of its water |
|---|---|---|
| 10 m | 16,830 km² | 22% |
| 20 m | 43,815 km² | 57.3% |
| 50 m | 75,284 km² | 98.5% |
| 80 m | 76,373 km² | 99.9% |
| 120 m | 76,411 km² | 99.9% |
| 200 m | 76,457 km² | 100% |
| 500 m | 76,468 km² | 100% |
| 1,000 m | 76,468 km² | 100% |
| 2,000 m | 76,468 km² | 100% |
| 3,000 m | 76,468 km² | 100% |
| 4,000 m | 76,468 km² | 100% |
| 6,000 m | 76,468 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
- Yellow Sea average depth about 46 m
- Inner Sea average depth about 38 m
- East China Sea average depth about 403 m
- Sea of Japan average depth about 1,725 m
- Gulf of Tonkin average depth about 36 m
- Philippine Sea average depth about 4,472 m
Nearest by the centre of each outline. All oceans and seas
Frequently asked questions
How deep is the Bo Hai?
On average about 18 m in the GEBCO grid (the middle value is 18 m). The deepest cell inside its outline is 492 m, at 37.65° N, 119.11° E.
How big is the Bo Hai?
About 76,468 km² of water inside its Natural Earth outline, counted from the grid cells that are below sea level.
How much of the Bo Hai would be land if sea level dropped?
With the sea 10 m lower, about 16,830 km² (22%) 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.