Japan earthquakes

M5.1 earthquake 198 km E of Hasaki, Japan

A magnitude 5.1 earthquake struck 198 km E of Hasaki, Japan on Wed, Feb 11, 1987, 1:23 AM JST (16:23 UTC), 38 km (23 mi) below the surface.

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The earthquake

Magnitude
5.1 (mw), moderate
Local time
UTC
1987-02-10 16:23:50 UTC
Depth
37.5 km (23.3 mi), shallow
Epicenter
35.586° N, 143.013° 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 2.1 and up: 0 in the 60 days after this one and 0 in the 30 days before it.

None recorded.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00032cb (also filed as gcmtb021087c, gcmt19870210162350, iscgem474280). Read Tue, Sep 22, 2026, 10:53 AM UTC.