California earthquakes

M2.3 earthquake 30 km WSW of Avalon, California

A magnitude 2.3 earthquake struck 30 km WSW of Avalon, California on Mon, Apr 26, 2021, 1:09 PM PDT (20:09 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.5 5km WSW of Hermosa Beach, 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
2.3 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2021-04-26 20:09:09 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
33.260° N, 118.643° 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 4.0 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
224°, poorly surrounded by stations
Stations used
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 40 in the 60 days after this one and 65 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000dxl8. Read Sun, Oct 4, 2026, 7:36 AM UTC.