California earthquakes

M1.8 earthquake 6km WSW of Devore, CA

A magnitude 1.8 earthquake struck 6km WSW of Devore, CA on Mon, Mar 11, 1985, 3:31 AM PST (11:31 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.2 4km SSE of Redlands, 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
1985-03-11 11:31:15 UTC
Depth
5.1 km (3.2 mi), shallow
Epicenter
34.197° N, 117.462° 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
From location
Station coverage gap
99°
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: 157 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 157.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci62449. Read Tue, Sep 22, 2026, 6:13 PM UTC.