California earthquakes

M1.5 earthquake 26 km ENE of Greenfield, California

A magnitude 1.5 earthquake struck 26 km ENE of Greenfield, California on Sat, Dec 11, 1982, 4:57 PM PST (00:57 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M1.7 23 km NE of Hollister, California. This one was a foreshock.

Greenfield forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.5 (md), micro
Local time
UTC
1982-12-12 00:57:29 UTC
Depth
0.2 km (0.1 mi), shallow
Epicenter
36.430° N, 120.981° 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 0.6 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
80°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 163 in the 60 days after this one and 31 in the 30 days before it.

After

The first 60 of 163.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1082985. Read Tue, Sep 22, 2026, 10:30 PM UTC.