California earthquakes

M2.6 earthquake 6km SSE of Mentone, CA

A magnitude 2.6 earthquake struck 6km SSE of Mentone, CA on Thu, Dec 9, 1982, 2:15 AM PST (10:15 UTC), 17 km (10 mi) below the surface.

A larger quake followed: M4.0 4km N of Fontana, CA. This one was a foreshock.

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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
2.6 (ml), micro
Local time
UTC
1982-12-09 10:15:10 UTC
Depth
16.6 km (10.3 mi), shallow
Epicenter
34.021° N, 117.118° W
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
From location
Station coverage gap
45°
Stations used
0

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 192 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 192.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci503999 (also filed as usp0001rbb). Read Tue, Sep 22, 2026, 8:45 PM UTC.