Japan earthquakes

M4.6 earthquake 89 km E of ?arai, Japan

A magnitude 4.6 earthquake struck 89 km E of ?arai, Japan on Fri, Dec 31, 1982, 9:59 PM JST (12:59 UTC), 57 km (35 mi) below the surface.

A larger quake followed: M4.7 58 km ESE of Hasaki, Japan. This one was a foreshock.

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The earthquake

Magnitude
4.6 (mb), light
Local time
UTC
1982-12-31 12:59:42 UTC
Depth
56.6 km (35.2 mi), shallow
Epicenter
36.308° N, 141.575° E
Region
Japan
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.6 and up: 7 in the 60 days after this one and 4 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001rx5. Read Tue, Sep 22, 2026, 3:36 PM UTC.