California earthquakes

M3.2 earthquake 16km NNE of Ridgecrest, CA

A magnitude 3.2 earthquake struck 16km NNE of Ridgecrest, CA on Fri, Apr 10, 1987, 11:40 AM PDT (18:40 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M3.7 24km NE of Olancha, 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
3.2 (ml), minor
Local time
UTC
1987-04-10 18:40:57 UTC
Depth
3.9 km (2.4 mi), shallow
Epicenter
35.742° N, 117.582° 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
Station coverage gap
148°
Stations used
0

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 65 in the 60 days after this one and 46 in the 30 days before it.

After

The first 60 of 65.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci720440 (also filed as usp000342b). Read Tue, Sep 22, 2026, 9:35 PM UTC.