California earthquakes

M2.2 earthquake 15 km N of Brooktrails, California

A magnitude 2.2 earthquake struck 15 km N of Brooktrails, California on Mon, Feb 11, 1980, 10:11 PM PST (06:11 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.5 5 km ESE of Clearlake, 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
2.2 (md), micro
Local time
UTC
1980-02-12 06:11:52 UTC
Depth
8.3 km (5.1 mi), shallow
Epicenter
39.580° N, 123.369° 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 0.4 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
111°
Stations used
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 102 in the 60 days after this one and 61 in the 30 days before it.

After

The first 60 of 102.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1051002. Read Tue, Sep 22, 2026, 9:40 PM UTC.