M2.0 earthquake 16km E of Boron, CA

A magnitude 2.0 earthquake struck 16km E of Boron, CA on Wed, Jul 10, 1985, 6:59 AM PDT (13:59 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.9 7km NNE of Big Bear City, 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: 85 in the 60 days after this one and 54 in the 30 days before it.

The first 60 of 85.

From the USGS Earthquake Hazards Program and its partner networks, event ci70050. Read Thu, Oct 1, 2026, 2:11 PM UTC.