California earthquakes

M2.7 earthquake 13 km NW of Moskowite Corner, California

A magnitude 2.7 earthquake struck 13 km NW of Moskowite Corner, California on Thu, Sep 5, 1985, 12:18 PM PDT (19:18 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.6 7 km W 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: 2.7 (md), micro
Local time: Thu, Sep 5, 1985, 12:18 PM PDT
UTC: 1985-09-05 19:18:38 UTC
Depth: 2.7 km (1.7 mi), shallow
Epicenter: 38.544° N, 122.282° 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 0.4 km horizontally, 2.1 km in depth
Magnitude uncertainty: ±0.18
Depth from: From location
Station coverage gap: 82°
Stations used: 43

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 0 in the 30 days before it.

After

The first 60 of 165.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc54621 (also filed as usp0002jfc). Read Wed, Sep 23, 2026, 2:40 AM UTC.