California earthquakes

M4.2 earthquake 22km NNW of Tehachapi, CA

A magnitude 4.2 earthquake struck 22km NNW of Tehachapi, CA on Wed, Jul 23, 1952, 12:51 PM GMT-7 (19:51 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.3 21km N of Tehachapi, 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
4.2 (ml), light
Local time
UTC
1952-07-23 19:51:33 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
35.325° N, 118.521° 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 1.3 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.18
Depth from
Operator assigned
Station coverage gap
96°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 174 in the 60 days after this one and 24 in the 30 days before it.

After

The first 60 of 174.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3318285. Read Wed, Sep 23, 2026, 12:52 AM UTC.