M2.3 earthquake 17 km NE of Mesa, California

A magnitude 2.3 earthquake struck 17 km NE of Mesa, California on Sun, Oct 12, 1986, 11:35 PM PDT (06:35 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M2.3 19 km ENE of Swall Meadows, 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: 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 nc85589. Read Wed, Sep 23, 2026, 1:58 AM UTC.