California earthquakes

M1.5 earthquake 12km W of Tehachapi, CA

A magnitude 1.5 earthquake struck 12km W of Tehachapi, CA on Tue, Nov 1, 1983, 10:09 PM PST (06:09 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M1.8 21km NNE of Kernville, CA. 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
1.5 (mc), micro
Local time
UTC
1983-11-02 06:09:00 UTC
Depth
7.2 km (4.5 mi), shallow
Epicenter
35.118° N, 118.581° 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 0.5 km horizontally, 1.0 km in depth
Depth from
From location
Station coverage gap
94°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 160 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 160.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci23793. Read Tue, Sep 22, 2026, 9:25 PM UTC.