Japan earthquakes

M5.7 earthquake 68 km S of Honchō, Japan

A magnitude 5.7 earthquake struck 68 km S of Honchō, Japan on Fri, May 17, 1968, 10:02 PM JST (13:02 UTC), 45 km (28 mi) below the surface.

A larger quake followed: M6.1 137 km SSE of Honchō, Japan. This one was a foreshock.

Shizunai-furukawachō forecastMore in Japan

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The earthquake

Magnitude
5.7 (mw), moderate
Local time
UTC
1968-05-17 13:02:39 UTC
Depth
45.1 km (28.0 mi), shallow
Epicenter
41.514° N, 142.985° 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.

Magnitude uncertainty
±0.20
Depth from
From location

Nearest places

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

Nearby

Within 100 km, magnitude 2.5 and up: 10 in the 60 days after this one and 8 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event iscgem822247. Read Tue, Sep 22, 2026, 7:06 AM UTC.