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7.4
EarthquakeExtreme

M7.4 earthquake near Ōfunato, Iwate

31783 d ago · 10 Oct 1939, 18:31 UTC off the east coast of Honshu, Japan

What happened

A magnitude 7.4 earthquake struck off the east coast of Honshu, Japan on 10 Oct 1939, 18:31 UTC at a depth of 20 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 Ōfunato, about 133 km away in Iwate, Japan.

Timeline

  1. First reported by USGS

    16 Oct 2026, 20:46 UTC

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