California earthquakes

M2.9 earthquake 11 km ENE of Coalinga, California

A magnitude 2.9 earthquake struck 11 km ENE of Coalinga, California on Thu, Oct 3, 1985, 8:50 PM PDT (03:50 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M4.0 11 km ENE of Coalinga, 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: 2.9 (md), micro
Local time: Thu, Oct 3, 1985, 8:50 PM PDT
UTC: 1985-10-04 03:50:06 UTC
Depth: 11.7 km (7.3 mi), shallow
Epicenter: 36.189° N, 120.250° 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 0.1 km horizontally, 0.3 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 72°
Stations used: 46

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 198 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 198.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc56232 (also filed as ci122043, usp0002ker). Read Tue, Sep 22, 2026, 8:24 PM UTC.