M1.5 earthquake 2 km ESE of Mesa, California

A magnitude 1.5 earthquake struck 2 km ESE of Mesa, California on Fri, Oct 10, 1986, 11:57 PM PDT (06:57 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M1.9 California-Nevada border region. 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: 200 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 200.

From the USGS Earthquake Hazards Program and its partner networks, event nc85560. Read Tue, Sep 22, 2026, 11:28 PM UTC.