California earthquakes

M3.8 earthquake 21km NW of Tehachapi, CA

A magnitude 3.8 earthquake struck 21km NW of Tehachapi, CA on Tue, Aug 19, 1952, 2:01 AM GMT-7 (09:01 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.4 15km ESE of Maricopa, 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
3.8 (ml), minor
Local time
UTC
1952-08-19 09:01:31 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
35.284° N, 118.583° 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 1.7 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.15
Depth from
Operator assigned
Station coverage gap
162°
Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 41 in the 60 days after this one and 157 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3306628. Read Tue, Sep 22, 2026, 4:15 PM UTC.