Japan earthquakes

M4.4 earthquake 94 km N of Naze, Japan

A magnitude 4.4 earthquake struck 94 km N of Naze, Japan on Mon, Mar 16, 1981, 7:39 PM JST (10:39 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.2 107 km N of Naze, Japan. This one was a foreshock.

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The earthquake

Magnitude: 4.4 (mb), light
Local time: Mon, Mar 16, 1981, 7:39 PM JST
UTC: 1981-03-16 10:39:00 UTC
Depth: 33.0 km (20.5 mi), shallow
Epicenter: 29.211° N, 129.378° 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.

How well it is located

Reviewed by a seismologist.

Depth from: OPERATOR_ASSIGNED

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 11 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001cqz (also filed as iscgem629965). Read Tue, Sep 22, 2026, 10:17 AM UTC.