Japan earthquakes

M5.4 earthquake 42 km N of Yonakuni, Japan

A magnitude 5.4 earthquake struck 42 km N of Yonakuni, Japan on Sat, Mar 22, 1986, 10:33 PM JST (13:33 UTC), 33 km (21 mi) below the surface.

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The earthquake

Magnitude: 5.4 (ms), moderate
Local time: Sat, Mar 22, 1986, 10:33 PM JST
UTC: 1986-03-22 13:33:58 UTC
Depth: 33.0 km (20.5 mi), shallow
Epicenter: 24.843° N, 123.063° 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 2.4 and up: 88 in the 60 days after this one and 50 in the 30 days before it.

After

The first 60 of 88.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002s37 (also filed as iscgem501206). Read Tue, Sep 22, 2026, 10:57 AM UTC.