California earthquakes

M3.7 earthquake 10km N of Grapevine, CA

A magnitude 3.7 earthquake struck 10km N of Grapevine, CA on Thu, Jul 24, 1952, 12:47 PM GMT-7 (19:47 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.1 14km NW 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
3.7 (mh), minor
Local time
UTC
1952-07-24 19:47:50 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
35.036° N, 118.908° 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 6.0 km horizontally, 31.6 km in depth
Magnitude uncertainty
±0.39
Depth from
Operator assigned
Station coverage gap
184°, poorly surrounded by stations
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 145 in the 60 days after this one and 53 in the 30 days before it.

After

The first 60 of 145.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3318362. Read Tue, Sep 22, 2026, 9:13 AM UTC.