EarthquakeExtreme

M7.5 earthquake - 137 km WSW of Rishiri Town, Japan

Name: M7.5 earthquake - 137 km WSW of Rishiri Town, Japan
Start: 1940-08-01T15:08:24.92+00:00
Location: 137 km WSW of Rishiri Town, Japan

31487 d ago · 1 Aug 1940, 15:08 UTC 137 km WSW of Rishiri Town, Japan

What happened

A magnitude 7.5 earthquake struck 137 km WSW of Rishiri Town, Japan on 1 Aug 1940, 15:08 UTC at a depth of 15 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 Rumoi, about 172 km away in Hokkaido, Japan.

Timeline

First reported by USGS
16 Oct 2026, 20:46 UTC

Community

Did you feel it?

Nearby in the last 30 days

No other events recorded within about 300 km in the last 30 days.