California earthquakes

M1.7 earthquake 5 km SSW of Huron, California

A magnitude 1.7 earthquake struck 5 km SSW of Huron, California on Sun, Sep 22, 1985, 10:48 AM PDT (17:48 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M2.1 7 km WNW of Kettleman City, 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
1.7 (md), micro
Local time
UTC
1985-09-22 17:48:05 UTC
Depth
1.4 km (0.9 mi), shallow
Epicenter
36.157° N, 120.117° 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 1.9 km horizontally, 7.1 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
160°
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 165 in the 60 days after this one and 31 in the 30 days before it.

After

The first 60 of 165.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc55608. Read Wed, Sep 23, 2026, 2:16 PM UTC.