M4.6 earthquake near Isumi, Chiba
1031 d ago · 21 Dec 2023, 14:17 UTC 69 km E of Ōhara, Japan
What happened
A magnitude 4.6 earthquake struck 69 km E of Ōhara, Japan on 21 Dec 2023, 14:17 UTC at a depth of 10 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 68 km away in Chiba, Japan.
Timeline
First reported by USGS
17 Oct 2026, 11:17 UTC
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