Surigao Strait at a glance
- 230 maverage depth
- 129 mmedian depth
- 1,475 mmaximum depth
- 2,799 km²water area
Surigao Strait is a strait. Inside its outline the GEBCO grid has about 2,799 km² of water, with an average depth of about 230 m (the middle value is 129 m) and a maximum of 1,475 m, found at 10.08° N, 125.29° E.
Open the map at the deepest cell and tap to read the depth.
How deep is each part of the Surigao Strait?
The bar splits the Surigao Strait's water by depth. Each colour is a depth band, and the shares add up to 100%.
- 0 to 200 m: 72.9%
- 200 to 1,000 m: 22.4%
- 1,000 to 4,000 m: 4.7%
- 4,000 to 6,000 m: 0%
- below 6,000 m: 0%
Named features near the deepest point: Philippine Trench (153 km), Galathea Depth (284 km), Sulu Trench (534 km), Sangihe Trench (679 km).
The Surigao Strait if sea level dropped
The slider on the map lowers the sea in steps. This table shows how much of the Surigao Strait's water would be land at each step.
| Sea level lowered by | Becomes land | Share of its water |
|---|---|---|
| 10 m | 173 km² | 6.2% |
| 20 m | 294 km² | 10.5% |
| 50 m | 585 km² | 20.9% |
| 80 m | 805 km² | 28.7% |
| 120 m | 1,311 km² | 46.9% |
| 200 m | 2,041 km² | 72.9% |
| 500 m | 2,417 km² | 86.3% |
| 1,000 m | 2,667 km² | 95.3% |
| 2,000 m | 2,799 km² | 100% |
| 3,000 m | 2,799 km² | 100% |
| 4,000 m | 2,799 km² | 100% |
| 6,000 m | 2,799 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
- Bohol Sea average depth about 913 m
- Visayan Sea average depth about 118 m
- Samar Sea average depth about 150 m
- Sibuyan Sea average depth about 608 m
- Sulu Sea average depth about 1,639 m
- Celebes Sea average depth about 3,561 m
Nearest by the centre of each outline. All oceans and seas
Frequently asked questions
How deep is the Surigao Strait?
On average about 230 m in the GEBCO grid (the middle value is 129 m). The deepest cell inside its outline is 1,475 m, at 10.08° N, 125.29° E.
How big is the Surigao Strait?
About 2,799 km² of water inside its Natural Earth outline, counted from the grid cells that are below sea level.
How much of the Surigao Strait would be land if sea level dropped?
With the sea 10 m lower, about 173 km² (6.2%) 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.