M1.7 earthquake 8km SSE of Tehachapi, CA

A magnitude 1.7 earthquake struck 8km SSE of Tehachapi, CA on Sat, Jan 7, 1984, 10:28 PM PST (06:28 UTC), 9 km (5 mi) below the surface.

A larger quake followed: M1.8 14km NNW of Grapevine, 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: 139 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 139.

From the USGS Earthquake Hazards Program and its partner networks, event ci28659. Read Tue, Sep 22, 2026, 5:27 PM UTC.