California earthquakes

M1.6 earthquake 29 km ENE of Soledad, California

A magnitude 1.6 earthquake struck 29 km ENE of Soledad, California on Thu, Dec 17, 1981, 11:03 PM PST (07:03 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M1.7 37 km W of Lockwood, California. 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
1.6 (md), micro
Local time
UTC
1981-12-18 07:03:23 UTC
Depth
5.1 km (3.2 mi), shallow
Epicenter
36.559° N, 121.048° 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 0.2 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.26
Depth from
From location
Station coverage gap
69°
Stations used
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 139 in the 60 days after this one and 43 in the 30 days before it.

After

The first 60 of 139.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1070415. Read Tue, Sep 22, 2026, 11:36 AM UTC.