California earthquakes

M1.6 earthquake 18km SW of Ocotillo, CA

A magnitude 1.6 earthquake struck 18km SW of Ocotillo, CA on Fri, Jan 25, 2002, 11:35 AM PST (19:35 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.7 13km WSW of Delta, B.C., MX. 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
2002-01-25 19:35:09 UTC
Depth
9.8 km (6.1 mi), shallow
Epicenter
32.621° N, 116.137° 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 1.1 km horizontally, 1.6 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
192°, poorly surrounded by stations
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 197 in the 60 days after this one and 193 in the 30 days before it.

After

The first 60 of 197.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci12291428. Read Sat, Oct 3, 2026, 4:48 PM UTC.