California earthquakes

M2.6 earthquake 13 km NNE of Coalinga, California

A magnitude 2.6 earthquake struck 13 km NNE of Coalinga, California on Sun, Sep 29, 1985, 2:34 PM PDT (21:34 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M2.9 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: 2.6 (md), micro
Local time: Sun, Sep 29, 1985, 2:34 PM PDT
UTC: 1985-09-29 21:34:54 UTC
Depth: 9.1 km (5.7 mi), shallow
Epicenter: 36.261° N, 120.323° 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, 0.2 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 66°
Stations used: 45

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 nc55993 (also filed as ci120960, usp0002k9r). Read Tue, Sep 22, 2026, 3:34 PM UTC.