Abstract

Abstract Closely spaced seismic‐reflection profiles across the eastern continental margin of Korea reveal that large‐scale slope failure scars occur ubiquitously on steep slopes (gradient, >5°) in water depths greater than 400 m. The slope failure scars are well defined with irregular scour planes and sometimes coalesce to form a large escarpment (maximum area, 275 km2 ). The failed material was deposited farther downslope as slide and mass‐flow deposits. These submarine slope failures are probably due to both seismicity associated with faulting and the steep gradient of the slope.

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