M3.0 earthquake 13km NNW of Olancha, CA

A magnitude 3.0 earthquake struck 13km NNW of Olancha, CA on Tue, May 5, 1981, 6:59 AM PDT (13:59 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.1 14km NNW of Olancha, 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: 38 in the 60 days after this one and 63 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event ci515420 (also filed as usp0001dhr). Read Tue, Sep 22, 2026, 5:01 PM UTC.