California earthquakes

M1.5 earthquake 3km ESE of Palomar Observatory, CA

A magnitude 1.5 earthquake struck 3km ESE of Palomar Observatory, CA on Mon, Jun 24, 2002, 11:24 PM PDT (06:24 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.3 9km NW of Morongo Valley, 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 (Mh), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2002-06-25 06:24:19 UTC
Depth
5.5 km (3.4 mi), shallow
Epicenter
33.346° N, 116.837° 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 0.4 km horizontally, 0.7 km in depth
Depth from
From location
Station coverage gap
84°
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 147 in the 60 days after this one and 103 in the 30 days before it.

After

The first 60 of 147.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci9794821. Read Sun, Oct 4, 2026, 5:07 PM UTC.