California earthquakes

M4.2 earthquake 11km NW of Grapevine, CA

A magnitude 4.2 earthquake struck 11km NW of Grapevine, CA on Sun, Aug 10, 1952, 12:44 PM GMT-7 (19:44 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.4 25km SSW of Bodfish, CA. This one was a foreshock.

Lake of the Woods forecastMore in California

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
1952-08-10 19:44:23 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
35.012° N, 119.019° 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
±0.14
Depth from
Operator assigned
Station coverage gap
171°
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: 53 in the 60 days after this one and 145 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3306519. Read Tue, Sep 22, 2026, 9:41 AM UTC.