M3.2 earthquake 4km NNE of El Segundo, CA

A magnitude 3.2 earthquake struck 4km NNE of El Segundo, CA on Wed, Jun 23, 2021, 5:08 PM PDT (00:08 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M3.4 4km NNW of Fontana, CA. This one was a foreshock.

Map

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

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.	Scale	Computed by	Notes
3.16	ML, local (Richter)	Southern California Seismic Network	Preferred · Final · ±0.153 · 290 stations
3.0	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.037 · 96 stations

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

2,309 people reported to the USGS what they felt; the strongest reported shaking was V, moderate shaking.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 53 in the 60 days after this one and 38 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event ci39716863 (also filed as us6000ep73). Read Sun, Oct 4, 2026, 3:07 PM UTC.