Japan earthquakes

M4.3 earthquake 141 km ESE of ?funato, Japan

A magnitude 4.3 earthquake struck 141 km ESE of ?funato, Japan on Thu, Jul 20, 1978, 12:00 AM JST (15:00 UTC), 38 km (24 mi) below the surface.

A larger quake followed: M4.4 150 km ESE of Ishinomaki, Japan. This one was a foreshock.

Ōfunato 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
4.3 (mb), light
Local time
UTC
1978-07-19 15:00:34 UTC
Depth
38.0 km (23.6 mi), shallow
Epicenter
38.407° N, 143.111° 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
10

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 11 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000vmz. Read Tue, Sep 22, 2026, 8:58 PM UTC.