Depth of the East Sea (East Sea)
• Average depth: ~1,350 m
• Maximum depth: ~3,742 m
• Location: Japan Basin
Regional characteristics
Near the Korean east coast: The seafloor drops off very steeply; depths reach hundreds to over a thousand meters just a few kilometers offshore.
Continental shelf: Extremely narrow compared to typical Pacific margins.
Major basins:
Japan Basin: Deepest area (hosts the maximum depth)
Yamato Basin: ~2,500 m
Ulleung Basin: ~2,000–2,300 m
In short: The East Sea is a deep sea that deepens rapidly near the coast, with an average depth of about 1.3 km and a maximum of about 3.7 km.
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