California earthquakes

M2.4 earthquake 3km NE of Buttonwillow, CA

A magnitude 2.4 earthquake struck 3km NE of Buttonwillow, CA on Sat, Oct 20, 1990, 9:25 PM PDT (04:25 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M4.3 14km NNE of Lamont, CA. This one was a foreshock.

Buttonwillow forecastMore in California

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.4 (Mc), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1990-10-21 04:25:41 UTC
Depth
5.2 km (3.2 mi), shallow
Epicenter
35.426° N, 119.448° 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.

Depth from
Operator assigned
Station coverage gap
121°
Stations used
0

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 84 in the 60 days after this one and 25 in the 30 days before it.

After

The first 60 of 84.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci2006686. Read Sat, Oct 3, 2026, 8:31 PM UTC.