Japan earthquakes

M6.1 earthquake 140 km ENE of Noda, Japan

A magnitude 6.1 earthquake struck 140 km ENE of Noda, Japan on Wed, Jul 24, 1968, 8:02 AM JST (23:02 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M6.1 142 km SSE of Honchō, Japan. This one was a foreshock.

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The earthquake

Magnitude
6.1 (mw), strong
Local time
UTC
1968-07-23 23:02:39 UTC
Depth
26.1 km (16.2 mi), shallow
Epicenter
40.376° N, 143.437° 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: 7 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 iscgem819294. Read Tue, Sep 22, 2026, 10:25 PM UTC.