California earthquakes

M1.5 earthquake 6km SW of Barstow, CA

A magnitude 1.5 earthquake struck 6km SW of Barstow, CA on Thu, Apr 29, 2021, 11:54 AM PDT (18:54 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.6 4km NNW 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
1.5 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2021-04-29 18:54:17 UTC
Depth
7.1 km (4.4 mi), shallow
Epicenter
34.861° N, 117.065° 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 0.2 km horizontally, 0.5 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
92°
Stations used
30

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 109 in the 60 days after this one and 59 in the 30 days before it.

After

The first 60 of 109.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci39635143. Read Sun, Oct 4, 2026, 2:44 PM UTC.