California earthquakes

M1.5 earthquake 19km ESE of Anza, CA

A magnitude 1.5 earthquake struck 19km ESE of Anza, CA on Wed, Feb 6, 2002, 3:19 AM PST (11:19 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M3.8 6km SSE of Lake Henshaw, 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
1.5 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2002-02-06 11:19:04 UTC
Depth
10.5 km (6.5 mi), shallow
Epicenter
33.484° N, 116.492° 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 0.3 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
63°
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 192 in the 60 days after this one and 174 in the 30 days before it.

After

The first 60 of 192.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci9757653. Read Sun, Oct 4, 2026, 12:50 PM UTC.