California earthquakes

M1.5 earthquake 1km SW of Bell, CA

A magnitude 1.5 earthquake struck 1km SW of Bell, CA on Wed, Aug 12, 1981, 1:09 PM PDT (20:09 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M1.8 24km N of Santa Barbara Is., 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
Local time
UTC
1981-08-12 20:09:32 UTC
Depth
4.5 km (2.8 mi), shallow
Epicenter
33.971° N, 118.196° 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 1.3 km horizontally, 21.2 km in depth
Depth from
From location
Station coverage gap
168°
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 197 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 197.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci521004. Read Tue, Sep 22, 2026, 9:38 PM UTC.