California earthquakes

M2.8 earthquake 12km NE of Cabazon, CA

A magnitude 2.8 earthquake struck 12km NE of Cabazon, CA on Thu, Mar 28, 1985, 1:01 PM PST (21:01 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M3.0 3km SSE of Loma Linda, 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
2.8 (ml), micro
Local time
UTC
1985-03-28 21:01:50 UTC
Depth
15.8 km (9.8 mi), shallow
Epicenter
34.000° N, 116.705° 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
40°
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: 181 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 181.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci63391. Read Tue, Sep 22, 2026, 8:46 PM UTC.