Japan earthquakes

M6.1 earthquake 167 km E of Noda, Japan

A magnitude 6.1 earthquake struck 167 km E of Noda, Japan on Tue, Sep 24, 1968, 12:34 PM JST (03:34 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M6.2 74 km E of Noda, Japan. This one was a foreshock.

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The earthquake

Magnitude
6.1 (mw), strong
Local time
UTC
1968-09-24 03:34:50 UTC
Depth
22.5 km (14.0 mi), shallow
Epicenter
40.352° N, 143.761° 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: 3 in the 60 days after this one and 7 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event iscgem817325. Read Tue, Sep 22, 2026, 12:13 PM UTC.