M4.8 earthquake near Isumi, Chiba
1031 d ago · 21 Dec 2023, 15:02 UTC 43 km ESE of Ōhara, Japan
What happened
A magnitude 4.8 earthquake struck 43 km ESE of Ōhara, Japan on 21 Dec 2023, 15:02 UTC at a depth of 27 km.
Earthquakes of this size are classed as Light. Widely felt nearby; objects may shake or fall. Significant damage is unusual. This was a shallow earthquake, which tends to be felt more strongly at the surface.
The nearest town in our records is Isumi, about 42 km away in Chiba, Japan.
Timeline
First reported by USGS
17 Oct 2026, 11:17 UTC
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