Ocean Floor Map

Sibuyan Sea depth map

Sea: average depth about 608 m, deepest 2,211 m (GEBCO_2026 grid).

Tap or scroll to load the interactive map

Sea level todayDrag the slider to lower the sea and see the land that would appear.

Sea level in metres below today’s. A simple bathtub model: it lowers the sea everywhere by the same amount and does not simulate how the water would really drain.

Key

Sea depth

  • Deeper than 6,000 m
  • 4,000 to 6,000 m
  • 2,000 to 4,000 m
  • 1,000 to 2,000 m
  • 200 to 1,000 m
  • Shallower than 200 m (the continental shelf)

Land height

  • Land up to 500 m
  • 500 to 2,000 m
  • Above 2,000 m

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  • Seabed exposed when the sea is lowered A dashed white line marks today’s coast.

How to read the map. Darker blue is deeper water. Tap anywhere to see how deep the sea is there, or how high the land is, and the nearest named undersea feature. Depths come from the GEBCO_2026 grid, which in most of the deep ocean is predicted from satellite measurements of the sea surface rather than surveyed by ship, and the map’s tiles are coarser than the grid, so narrow trenches read shallower on the map than their true depth. Not for navigation.

Sibuyan Sea at a glance

  • 608 maverage depth
  • 510 mmedian depth
  • 2,211 mmaximum depth
  • 28,288 km²water area

Sibuyan Sea is a sea. Inside its outline the GEBCO grid has about 28,288 km² of water, with an average depth of about 608 m (the middle value is 510 m) and a maximum of 2,211 m, found at 12.67° N, 122.54° E.

Open the map at the deepest cell and tap to read the depth.

How deep is each part of the Sibuyan Sea?

The bar splits the Sibuyan Sea's water by depth. Each colour is a depth band, and the shares add up to 100%.

  • 0 to 200 m: 26.1%
  • 200 to 1,000 m: 48.9%
  • 1,000 to 4,000 m: 25%
  • 4,000 to 6,000 m: 0%
  • below 6,000 m: 0%

Named features near the deepest point: Manila Trench (444 km), Galathea Depth (490 km), Philippine Trench (538 km), Sulu Trench (621 km).

The Sibuyan Sea if sea level dropped

The slider on the map lowers the sea in steps. This table shows how much of the Sibuyan Sea's water would be land at each step.

Sea level lowered byBecomes landShare of its water
10 m491 km²1.7%
20 m1,021 km²3.6%
50 m3,634 km²12.8%
80 m5,084 km²18%
120 m5,953 km²21%
200 m7,390 km²26.1%
500 m13,858 km²49%
1,000 m21,221 km²75%
2,000 m28,285 km²100%
3,000 m28,288 km²100%
4,000 m28,288 km²100%
6,000 m28,288 km²100%

A simple bathtub model: it lowers the sea everywhere by the same amount and does not simulate how water would really drain.

Nearby seas

Nearest by the centre of each outline. All oceans and seas

Frequently asked questions

How deep is the Sibuyan Sea?

On average about 608 m in the GEBCO grid (the middle value is 510 m). The deepest cell inside its outline is 2,211 m, at 12.67° N, 122.54° E.

How big is the Sibuyan Sea?

About 28,288 km² of water inside its Natural Earth outline, counted from the grid cells that are below sea level.

How much of the Sibuyan Sea would be land if sea level dropped?

With the sea 10 m lower, about 491 km² (1.7%) 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.

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