California earthquakes

M3.1 earthquake 7 km SSW of Huron, California

A magnitude 3.1 earthquake struck 7 km SSW of Huron, California on Tue, Feb 27, 1979, 7:36 AM PST (15:36 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.5 24 km ENE of Soledad, 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
3.1 (md), minor
Local time
UTC
1979-02-27 15:36:30 UTC
Depth
9.9 km (6.1 mi), shallow
Epicenter
36.137° N, 120.126° 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 0.5 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
184°, poorly surrounded by stations
Stations used
33

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 61 in the 60 days after this one and 27 in the 30 days before it.

After

The first 60 of 61.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1044820 (also filed as ci3346350, usp0000z1f). Read Tue, Sep 29, 2026, 11:22 PM UTC.