California earthquakes

M2.2 earthquake 19km ENE of Clearlake, CA

A magnitude 2.2 earthquake struck 19km ENE of Clearlake, CA on Tue, Mar 27, 2018, 7:24 PM PDT (02:24 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M4.2 5km NW of The Geysers, CA. 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, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2018-03-28 02:24:29 UTC
Depth
0.5 km (0.3 mi), shallow
Epicenter
39.027° N, 122.424° 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 0.3 km horizontally, 8.0 km in depth
Magnitude uncertainty
±0.25
Depth from
From location
Station coverage gap
87°
Stations used
31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 194 in the 60 days after this one and 101 in the 30 days before it.

After

The first 60 of 194.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc72990690. Read Mon, Oct 5, 2026, 1:42 PM UTC.