California earthquakes

M4.5 earthquake 11km NW of Grapevine, CA

A magnitude 4.5 earthquake struck 11km NW of Grapevine, CA on Mon, Jul 21, 1952, 4:57 AM GMT-7 (11:57 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M5.4 25km SSW of Bodfish, CA. This one was a foreshock.

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The earthquake

Magnitude
4.5 (mh), light
Local time
UTC
1952-07-21 11:57:00 UTC
Depth
0.0 km (0.0 mi), shallow
Epicenter
35.000° N, 119.033° 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.

Depth from
From location

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 199 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 199.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci10084402 (also filed as ushis1790). Read Tue, Sep 22, 2026, 10:02 AM UTC.