M8.4 earthquake - 1933 Sanriku (Sanriku-oki) Earthquake, Japan
34196 d ago · 2 Mar 1933, 17:31 UTC 1933 Sanriku (Sanriku-oki) Earthquake, Japan
What happened
A magnitude 8.4 earthquake struck 1933 Sanriku (Sanriku-oki) Earthquake, Japan on 2 Mar 1933, 17:31 UTC at a depth of 15 km.
Earthquakes of this size are classed as Great. Can cause severe damage across hundreds of kilometres and may trigger tsunamis. This was a shallow earthquake, which tends to be felt more strongly at the surface.
The nearest town in our records is Yamada, about 229 km away in Iwate, Japan.
Timeline
First reported by USGS
16 Oct 2026, 20:46 UTC
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