California earthquakes

M2.1 earthquake 1km WNW of Cabazon, CA

A magnitude 2.1 earthquake struck 1km WNW of Cabazon, CA on Sun, Aug 16, 1987, 4:24 AM PDT (11:24 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M2.1 13km SE of Anza, 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
2.1 (mc), micro
Local time
UTC
1987-08-16 11:24:34 UTC
Depth
15.7 km (9.7 mi), shallow
Epicenter
33.919° N, 116.793° 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
35°
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: 161 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 161.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci620981. Read Tue, Sep 22, 2026, 9:30 PM UTC.