Tsugaru Strait at a glance
- 110 maverage depth
- 84 mmedian depth
- 421 mmaximum depth
- 5,325 km²water area
Tsugaru Strait is a strait. Inside its outline the GEBCO grid has about 5,325 km² of water, with an average depth of about 110 m (the middle value is 84 m) and a maximum of 421 m, found at 41.54° N, 141.11° E.
Open the map at the deepest cell and tap to read the depth.
How deep is each part of the Tsugaru Strait?
The bar splits the Tsugaru Strait's water by depth. Each colour is a depth band, and the shares add up to 100%.
- 0 to 200 m: 81.4%
- 200 to 1,000 m: 18.6%
- 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: Japan Trench (313 km), Erimo Seamount (331 km), Kushiro Submarine Canyon (334 km), Yamato Ridge (572 km).
The Tsugaru Strait if sea level dropped
The slider on the map lowers the sea in steps. This table shows how much of the Tsugaru Strait's water would be land at each step.
| Sea level lowered by | Becomes land | Share of its water |
|---|---|---|
| 10 m | 96 km² | 1.8% |
| 20 m | 359 km² | 6.7% |
| 50 m | 1,615 km² | 30.3% |
| 80 m | 2,600 km² | 48.8% |
| 120 m | 3,238 km² | 60.8% |
| 200 m | 4,335 km² | 81.4% |
| 500 m | 5,325 km² | 100% |
| 1,000 m | 5,325 km² | 100% |
| 2,000 m | 5,325 km² | 100% |
| 3,000 m | 5,325 km² | 100% |
| 4,000 m | 5,325 km² | 100% |
| 6,000 m | 5,325 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
- Sea of Japan average depth about 1,725 m
- Inner Sea average depth about 38 m
- Sea of Okhotsk average depth about 881 m
- Yellow Sea average depth about 46 m
- Bo Hai average depth about 18 m
- East China Sea average depth about 403 m
Nearest by the centre of each outline. All oceans and seas
Frequently asked questions
How deep is the Tsugaru Strait?
On average about 110 m in the GEBCO grid (the middle value is 84 m). The deepest cell inside its outline is 421 m, at 41.54° N, 141.11° E.
How big is the Tsugaru Strait?
About 5,325 km² of water inside its Natural Earth outline, counted from the grid cells that are below sea level.
How much of the Tsugaru Strait would be land if sea level dropped?
With the sea 10 m lower, about 96 km² (1.8%) 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 strait. See data sources and licences. The GEBCO Grid should NOT be used for navigation or for any other purpose involving safety at sea.