M2.3 earthquake 23km NNW of Tehachapi, CA

A magnitude 2.3 earthquake struck 23km NNW of Tehachapi, CA on Mon, Jul 22, 1985, 11:23 AM PDT (18:23 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M2.4 6km NE of Lake Isabella, 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: 87 in the 60 days after this one and 15 in the 30 days before it.

The first 60 of 87.

From the USGS Earthquake Hazards Program and its partner networks, event ci71160. Read Thu, Sep 24, 2026, 8:54 AM UTC.