California earthquakes

M1.6 earthquake 22km WNW of Buttonwillow, CA

A magnitude 1.6 earthquake struck 22km WNW of Buttonwillow, CA on Tue, Nov 16, 2021, 7:12 AM PST (15:12 UTC), 28 km (17 mi) below the surface.

A larger quake followed: M3.9 15km SSE of Buttonwillow, CA. This one was a foreshock.

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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
1.6 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2021-11-16 15:12:56 UTC
Depth
27.6 km (17.1 mi), shallow
Epicenter
35.463° N, 119.699° 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 0.6 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
113°
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: 28 in the 60 days after this one and 21 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci40098688. Read Sun, Oct 4, 2026, 9:00 AM UTC.