California earthquakes

M1.8 earthquake 15 km WNW of Huron, California

A magnitude 1.8 earthquake struck 15 km WNW of Huron, California on Sun, Jan 29, 1984, 6:47 AM PST (14:47 UTC), 22 km (14 mi) below the surface.

A larger quake followed: M2.4 10km WSW of Alpaugh, 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
1.8 (md), micro
Local time
UTC
1984-01-29 14:47:49 UTC
Depth
22.0 km (13.7 mi), shallow
Epicenter
36.279° N, 120.249° 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 4.3 km horizontally, 4.3 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
210°, poorly surrounded by stations
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 190 in the 60 days after this one and 4 in the 30 days before it.

After

The first 60 of 190.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc3979 (also filed as ci30449). Read Tue, Sep 22, 2026, 4:10 PM UTC.