California earthquakes

M1.8 earthquake 33km SW of Ludlow, CA

A magnitude 1.8 earthquake struck 33km SW of Ludlow, CA on Fri, Jun 7, 1985, 5:41 PM PDT (00:41 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M2.0 33km NE of Big Bear City, 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
1.8 (mc), micro
Local time
UTC
1985-06-08 00:41:55 UTC
Depth
4.4 km (2.7 mi), shallow
Epicenter
34.521° N, 116.420° 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.

Depth from
Operator assigned
Station coverage gap
148°
Stations used
0

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 179 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 179.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci67941. Read Tue, Sep 22, 2026, 10:28 PM UTC.