M1.8 earthquake 11km WSW of El Segundo, CA

A magnitude 1.8 earthquake struck 11km WSW of El Segundo, CA on Thu, Oct 22, 1981, 8:36 PM PDT (03:36 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M2.4 10km SE of San Pedro, CA. This one was a foreshock.

Map

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

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 106 in the 60 days after this one and 87 in the 30 days before it.

The first 60 of 106.

From the USGS Earthquake Hazards Program and its partner networks, event ci525979. Read Wed, Sep 23, 2026, 11:33 PM UTC.