California earthquakes

M1.9 earthquake 11 km S of Huron, California

A magnitude 1.9 earthquake struck 11 km S of Huron, California on Fri, Dec 13, 1985, 7:38 PM PST (03:38 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M2.1 13km NNW of Simmler, CA. 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
1.9 (md), micro
Local time
UTC
1985-12-14 03:38:27 UTC
Depth
7.3 km (4.6 mi), shallow
Epicenter
36.102° N, 120.094° 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, 0.4 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
195°, poorly surrounded by stations
Stations used
24

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 106 in the 60 days after this one and 75 in the 30 days before it.

After

The first 60 of 106.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc61430. Read Tue, Sep 22, 2026, 6:55 PM UTC.