California earthquakes

M2.7 earthquake 22km ESE of Anza, CA

A magnitude 2.7 earthquake struck 22km ESE of Anza, CA on Sat, Nov 26, 1983, 11:57 AM PST (19:57 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M3.3 1km ENE of Loma Linda, 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
2.7 (mc), micro
Local time
UTC
1983-11-26 19:57:50 UTC
Depth
11.7 km (7.3 mi), shallow
Epicenter
33.480° N, 116.460° 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
38°
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: 195 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 195.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci25387. Read Tue, Sep 22, 2026, 10:31 PM UTC.