California earthquakes

M2.6 earthquake 14 km SW of Round Valley, California

A magnitude 2.6 earthquake struck 14 km SW of Round Valley, California on Sun, Feb 2, 1986, 6:33 AM PST (14:33 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M2.9 18 km SW of Aspen Springs, 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
UTC
1986-02-02 14:33:02 UTC
Depth
15.6 km (9.7 mi), shallow
Epicenter
37.312° N, 118.678° 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 0.5 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.26
Depth from
From location
Station coverage gap
184°, poorly surrounded by stations
Stations used
38

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 97 in the 60 days after this one and 74 in the 30 days before it.

After

The first 60 of 97.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc65421 (also filed as ci115027). Read Tue, Sep 22, 2026, 11:29 PM UTC.