M2.5 earthquake 12km NNE of Pine Valley, CA

A magnitude 2.5 earthquake struck 12km NNE of Pine Valley, CA on Tue, Dec 18, 1979, 2:04 AM PST (10:04 UTC), 12 km (8 mi) below the surface.

A larger quake followed: M3.3 5km NE of Westmorland, 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: 178 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 178.

From the USGS Earthquake Hazards Program and its partner networks, event ci3354635. Read Tue, Sep 22, 2026, 11:27 PM UTC.