California earthquakes

M2.9 earthquake 4km S of Devore, CA

A magnitude 2.9 earthquake struck 4km S of Devore, CA on Mon, Oct 11, 1948, 11:29 AM GMT-7 (18:29 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.6 18km N of Yucca Valley, 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
2.9 (ml), micro
Local time
UTC
1948-10-11 18:29:33 UTC
Depth
9.8 km (6.1 mi), shallow
Epicenter
34.187° N, 117.397° 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 1.2 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
236°, poorly surrounded by stations
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 108 in the 60 days after this one and 8 in the 30 days before it.

After

The first 60 of 108.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3357116. Read Mon, Sep 21, 2026, 9:24 PM UTC.