California earthquakes

M1.9 earthquake 18km SSW of Ludlow, CA

A magnitude 1.9 earthquake struck 18km SSW of Ludlow, CA on Mon, Jul 1, 2002, 11:29 PM PDT (06:29 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.7 31km WSW of Ludlow, CA. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.9 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2002-07-02 06:29:36 UTC
Depth
6.1 km (3.8 mi), shallow
Epicenter
34.573° N, 116.244° 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, 2.5 km in depth
Magnitude uncertainty
±0.22
Depth from
From location
Station coverage gap
51°
Stations used
35

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 120 in the 60 days after this one and 70 in the 30 days before it.

After

The first 60 of 120.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci9796653. Read Sun, Oct 4, 2026, 8:37 PM UTC.