California earthquakes

M1.8 earthquake 6 km SSE of Moskowite Corner, California

A magnitude 1.8 earthquake struck 6 km SSE of Moskowite Corner, California on Sat, Oct 5, 1985, 3:45 PM PDT (22:45 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.1 5 km SW of Cobb, 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: 1.8 (md), micro
Local time: Sat, Oct 5, 1985, 3:45 PM PDT
UTC: 1985-10-05 22:45:38 UTC
Depth: 5.4 km (3.4 mi), shallow
Epicenter: 38.393° N, 122.167° 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 0.6 km horizontally, 1.4 km in depth
Magnitude uncertainty: ±0.27
Depth from: From location
Station coverage gap: 189°, poorly surrounded by stations
Stations used: 6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 171 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 171.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc57209. Read Tue, Sep 22, 2026, 9:01 PM UTC.