California earthquakes

M1.7 earthquake 19km SSE of Joshua Tree, CA

A magnitude 1.7 earthquake struck 19km SSE of Joshua Tree, CA on Fri, Apr 10, 1981, 1:28 PM PST (21:28 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M3.5 10km NW of Warner Springs, CA. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.7 (Mh), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1981-04-10 21:28:54 UTC
Depth
-0.8 km (-0.5 mi), shallow
Epicenter
33.974° N, 116.243° 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 0.3 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.34
Depth from
From location
Station coverage gap
53°
Stations used
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 163 in the 60 days after this one and 94 in the 30 days before it.

After

The first 60 of 163.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci514062. Read Sat, Oct 3, 2026, 12:04 PM UTC.