M6.1 earthquake - 182 km SSE of Hiroo, Japan
39990 d ago · 21 Apr 1917, 03:52 UTC 182 km SSE of Hiroo, Japan
What happened
A magnitude 6.1 earthquake struck 182 km SSE of Hiroo, Japan on 21 Apr 1917, 03:52 UTC at a depth of 15 km.
Earthquakes of this size are classed as Strong. Can cause damage in populated areas up to tens of kilometres away. This was a shallow earthquake, which tends to be felt more strongly at the surface.
The nearest town in our records is Kuji, about 226 km away in Iwate, Japan.
Timeline
First reported by USGS
16 Oct 2026, 20:46 UTC
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