California earthquakes

M2.4 earthquake 2 km SSE of Comptche, California

A magnitude 2.4 earthquake struck 2 km SSE of Comptche, California on Sun, Mar 27, 1983, 7:27 PM PST (03:27 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.6 3 km E of Talmage, 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
2.4 (md), micro
Local time
UTC
1983-03-28 03:27:44 UTC
Depth
10.1 km (6.3 mi), shallow
Epicenter
39.248° N, 123.584° 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 1.1 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
201°, poorly surrounded by stations
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 126 in the 60 days after this one and 83 in the 30 days before it.

After

The first 60 of 126.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1089675. Read Mon, Sep 28, 2026, 11:34 PM UTC.