California earthquakes

M2.1 earthquake 9km SE of Dollar Point, CA

A magnitude 2.1 earthquake struck 9km SE of Dollar Point, CA on Fri, May 28, 2021, 8:33 AM PDT (15:33 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M6.0 Antelope Valley, CA. This one was a foreshock.

Dollar Point forecastMore in California

Map

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

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The earthquake

Magnitude
2.1 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-05-28 15:33:19 UTC
Depth
5.7 km (3.5 mi), shallow
Epicenter
39.125° N, 120.030° W
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
2.08Md, durationNorthern California Seismic SystemPreferred · Final · ±0.266 · 21 stations
1.3ML, local (Richter)Nevada Seismological LaboratoryReviewed · ±0.29 · 10 stations

Did you feel it?

No one has reported feeling this quake to the USGS.

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 0.2 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.27
Depth from
From location
Station coverage gap
66°
Stations used
20

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 42 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73566721 (also filed as nn00808325). Read Sat, Oct 3, 2026, 10:56 PM UTC.