Japan earthquakes

M4.5 earthquake 175 km ESE of Iwaki, Japan

A magnitude 4.5 earthquake struck 175 km ESE of Iwaki, Japan on Mon, Aug 16, 1982, 10:13 AM JST (01:13 UTC), 28 km (17 mi) below the surface.

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The earthquake

Magnitude: 4.5 (mb), light
Local time: Mon, Aug 16, 1982, 10:13 AM JST
UTC: 1982-08-16 01:13:20 UTC
Depth: 27.5 km (17.1 mi), shallow
Epicenter: 36.489° N, 142.726° 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 1.5 and up: 3 in the 60 days after this one and 21 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001p2u (also filed as iscgemsup593856). Read Tue, Sep 22, 2026, 9:14 AM UTC.