California earthquakes

M2.5 earthquake 13 km SW of Huron, California

A magnitude 2.5 earthquake struck 13 km SW of Huron, California on Mon, May 9, 1983, 6:46 PM PDT (01:46 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.5 15 km NW of Coalinga, 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
2.5 (md), micro
Local time
UTC
1983-05-10 01:46:47 UTC
Depth
10.2 km (6.3 mi), shallow
Epicenter
36.112° N, 120.198° 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 0.4 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
94°
Stations used
32

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 201 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of 201.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1093902. Read Wed, Sep 30, 2026, 2:05 AM UTC.