Japan earthquakes

M4.9 earthquake 92 km SSE of Nemuro, Japan

A magnitude 4.9 earthquake struck 92 km SSE of Nemuro, Japan on Thu, Jul 5, 1973, 6:29 AM JST (21:29 UTC), 36 km (22 mi) below the surface.

A larger quake followed: M5.3 123 km SE of Nemuro, Japan. This one was a foreshock.

Nemuro forecastMore in Japan

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.9 (mb), light
Local time
UTC
1973-07-04 21:29:22 UTC
Depth
36.0 km (22.4 mi), shallow
Epicenter
42.538° N, 145.955° 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.

Stations used
59

Nearest places

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

Nearby

Within 100 km, magnitude 1.9 and up: 15 in the 60 days after this one and 110 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00002j3. Read Tue, Sep 22, 2026, 10:06 AM UTC.