M1.7 earthquake 21 km SSW of Three Rocks, California

A magnitude 1.7 earthquake struck 21 km SSW of Three Rocks, California on Mon, Jan 23, 1984, 9:10 AM PST (17:10 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.3 7 km SSW of Avenal, 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: 198 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 198.

From the USGS Earthquake Hazards Program and its partner networks, event nc3012. Read Tue, Sep 22, 2026, 11:36 AM UTC.