Japan earthquakes

M5.9 earthquake 103 km SSW of Yudomari, Japan

A magnitude 5.9 earthquake struck 103 km SSW of Yudomari, Japan on Thu, Feb 19, 1981, 12:48 AM JST (15:48 UTC), 34 km (21 mi) below the surface.

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The earthquake

Magnitude: 5.9 (ms), moderate
Local time: Thu, Feb 19, 1981, 12:48 AM JST
UTC: 1981-02-18 15:48:10 UTC
Depth: 34.0 km (21.1 mi), shallow
Epicenter: 29.328° N, 130.216° 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: CONSTRAINED_BY_DEPTH_PHASES

Nearest places

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

Nearby

Within 100 km, magnitude 2.5 and up: 16 in the 60 days after this one and 0 in the 30 days before it.

After

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001c8s (also filed as gcmtb021881a, gcmt19810218154810, iscgem631460). Read Tue, Sep 22, 2026, 7:13 AM UTC.