California earthquakes

M3.0 earthquake 5 km SSE of Mesa, California

A magnitude 3.0 earthquake struck 5 km SSE of Mesa, California on Mon, Dec 20, 1982, 6:41 AM PST (14:41 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.9 2 km ESE of Mammoth Lakes, California. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.0 (md), minor
Local time
UTC
1982-12-20 14:41:26 UTC
Depth
5.6 km (3.5 mi), shallow
Epicenter
37.374° N, 118.526° 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.

Location uncertainty
About 0.8 km horizontally, 2.2 km in depth
Magnitude uncertainty
±0.23
Depth from
From location
Station coverage gap
250°, poorly surrounded by stations
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1083279 (also filed as ci500247). Read Tue, Sep 22, 2026, 11:28 PM UTC.