California earthquakes

M3.3 earthquake 11 km W of Huron, California

A magnitude 3.3 earthquake struck 11 km W of Huron, California on Wed, May 5, 1976, 11:01 AM PDT (18:01 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.6 13 km WSW of Three Rocks, 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
3.3 (md), minor
Local time
UTC
1976-05-05 18:01:43 UTC
Depth
8.2 km (5.1 mi), shallow
Epicenter
36.195° N, 120.228° 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 0.7 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.68
Depth from
From location
Station coverage gap
232°, poorly surrounded by stations
Stations used
31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 114 in the 60 days after this one and 71 in the 30 days before it.

After

The first 60 of 114.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1029604 (also filed as ci152896). Read Wed, Sep 30, 2026, 7:54 AM UTC.