M2.3 earthquake 14km E of Angwin, CA

A magnitude 2.3 earthquake struck 14km E of Angwin, CA on Wed, Oct 28, 2020, 12:45 PM PDT (19:45 UTC), 6 km (3 mi) below the surface.

A larger quake followed: M4.4 13km W of Lakeport, CA. This one was a foreshock.

Map

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

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak 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: 182 in the 60 days after this one and 64 in the 30 days before it.

The first 60 of 182.

From the USGS Earthquake Hazards Program and its partner networks, event nc73475966. Read Sun, Oct 4, 2026, 11:38 PM UTC.