California earthquakes

M3.7 earthquake 9 km WSW of Huron, California

A magnitude 3.7 earthquake struck 9 km WSW of Huron, California on Tue, Jun 28, 1983, 11:41 PM PDT (06:41 UTC), 14 km (8 mi) below the surface.

A larger quake followed: M5.4 11 km NNW of Coalinga, California. 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: 3.7 (md), minor
Local time: Tue, Jun 28, 1983, 11:41 PM PDT
UTC: 1983-06-29 06:41:07 UTC
Depth: 13.5 km (8.4 mi), shallow
Epicenter: 36.157° N, 120.195° W
Region: California
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, 0.3 km in depth
Magnitude uncertainty: ±0.12
Depth from: From location
Station coverage gap: 72°
Stations used: 50

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 196 in the 30 days before it.

After

The first 60 of 200.

Before

Earthquakes today California earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1097739 (also filed as usp0001wfb, ci2218279). Read Mon, Sep 28, 2026, 8:51 AM UTC.