M1.8 earthquake 22km NE of Arvin, CA

A magnitude 1.8 earthquake struck 22km NE of Arvin, CA on Tue, Oct 25, 1983, 6:30 PM PDT (01:30 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M2.0 1km S of Valencia, 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: 155 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 155.

From the USGS Earthquake Hazards Program and its partner networks, event ci22828. Read Tue, Sep 22, 2026, 9:02 PM UTC.