Japan earthquakes

M4.8 earthquake 9 km E of Seto, Japan

A magnitude 4.8 earthquake struck 9 km E of Seto, Japan on Tue, Jul 31, 1979, 4:39 PM JST (07:39 UTC), 286 km (178 mi) below the surface.

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The earthquake

Magnitude
4.8 (mb), light
Local time
UTC
1979-07-31 07:39:10 UTC
Depth
286.0 km (177.7 mi), intermediate-depth
Epicenter
35.249° N, 137.205° 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
Stations used
107

Nearest places

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

Nearby

Within 100 km, magnitude 1.8 and up: 1 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 3.63 km SSE of Toyohama, Japan · 17213 days ago · 344 km deep · 67 km away

Before

  1. 4.59 km SE of Yokkaichi, Japan · 17250 days ago · 326 km deep · 59 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000125v. Read Tue, Sep 29, 2026, 8:41 AM UTC.