California earthquakes

M1.6 earthquake 4km ENE of Anza, CA

A magnitude 1.6 earthquake struck 4km ENE of Anza, CA on Thu, Mar 20, 1986, 10:03 PM PST (06:03 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M1.8 22km SSW of La Quinta, 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
1.6 (mc), micro
Local time
UTC
1986-03-21 06:03:07 UTC
Depth
11.9 km (7.4 mi), shallow
Epicenter
33.576° N, 116.635° 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
87°
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: 176 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 176.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci119552. Read Tue, Sep 22, 2026, 8:59 PM UTC.