California earthquakes

M1.6 earthquake 5km ENE of Calimesa, CA

A magnitude 1.6 earthquake struck 5km ENE of Calimesa, CA on Sun, May 25, 2008, 4:47 PM PDT (23:47 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M4.0 1km E 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
1.6 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2008-05-25 23:47:04 UTC
Depth
16.2 km (10.1 mi), shallow
Epicenter
34.004° N, 117.004° 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, 0.6 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
33°
Stations used
48

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 139 in the 60 days after this one and 96 in the 30 days before it.

After

The first 60 of 139.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci10326613. Read Mon, Oct 5, 2026, 7:12 AM UTC.