M1.7 earthquake 10 km NNE of Cayucos, California

A magnitude 1.7 earthquake struck 10 km NNE of Cayucos, California on Mon, Sep 27, 1982, 5:41 PM PDT (00:41 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M5.4 22 km SSW of Three Rocks, California. 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: 149 in the 60 days after this one and 27 in the 30 days before it.

The first 60 of 149.

From the USGS Earthquake Hazards Program and its partner networks, event nc1079653. Read Wed, Sep 30, 2026, 2:33 AM UTC.