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How deep is the East China Sea on average?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.
Physical map of the East China Sea, South China Sea, and Yellow Sea, showing surrounding countries, major cities, and maritime boundaries. The map highlights sea depths with color shading, features such as the Macclesfield Bank and Philippine Trench, and includes a locator inset for regional context.
East China Sea

The East China Sea has an average depth of 1,145 feet (349 to 350 meters).12

While the sea is largely shallow—with nearly three-fourths of its area measuring less than 650 feet (200 meters) deep—it features a significantly deeper section known as the Okinawa Trough. This trough, which extends alongside the Ryukyu Islands, reaches a maximum depth of 8,912 feet (2,716 to 2,717 meters).12