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How deep is the Okinawa Trough?

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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 Okinawa Trough is a deeper section of the East China Sea that runs alongside the Ryukyu Islands. A large portion of the trough exceeds 3,300 feet (1,000 metres) in depth, and it reaches a maximum depth of 8,912 feet (2,716 metres).1

It is important to distinguish the Okinawa Trough from the nearby Ryukyu Trench, which is a separate, significantly deeper feature located to the east of the Ryukyu Islands that reaches a maximum depth of 24,629 feet (7,507 metres).21