M4.3 earthquake - 177 km SSE of Katsuura, Japan
1915 d ago · 20 Jul 2021, 06:56 UTC 177 km SSE of Katsuura, Japan
What happened
A magnitude 4.3 earthquake struck 177 km SSE of Katsuura, Japan on 20 Jul 2021, 06:56 UTC at a depth of 74 km.
Earthquakes of this size are classed as Light. Widely felt nearby; objects may shake or fall. Significant damage is unusual. This was an intermediate-depth earthquake, so shaking is spread over a wider, gentler area.
The nearest town in our records is Katsuura, about 178 km away in Chiba, Japan.
Timeline
First reported by USGS
17 Oct 2026, 10:19 UTC
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