California earthquakes

M1.6 earthquake 14km E of Campo, CA

A magnitude 1.6 earthquake struck 14km E of Campo, CA on Sun, Mar 28, 2021, 1:57 PM PDT (20:57 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M3.7 6km SW of Holtville, 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
1.6 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2021-03-28 20:57:08 UTC
Depth
18.5 km (11.5 mi), shallow
Epicenter
32.608° N, 116.317° W
Felt reports
2
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

2 people reported to the USGS what they felt.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.4 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
109°
Stations used
24

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 193 in the 60 days after this one and 84 in the 30 days before it.

After

The first 60 of 193.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci39593351. Read Mon, Oct 5, 2026, 2:29 AM UTC.