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M7.0 earthquake - 122 km SSE of Koshima, Japan

30890 d ago · 21 Mar 1942, 23:20 UTC 122 km SSE of Koshima, Japan

What happened

A magnitude 7 earthquake struck 122 km SSE of Koshima, Japan on 21 Mar 1942, 23:20 UTC at a depth of 25 km.

Earthquakes of this size are classed as Major. Can cause serious damage over large areas. This was a shallow earthquake, which tends to be felt more strongly at the surface.

The nearest town in our records is Amami, about 157 km away in Kagoshima, Japan.

Timeline

  1. First reported by USGS

    16 Oct 2026, 20:46 UTC

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