M1.9 earthquake 13 km WNW of Huron, California

A magnitude 1.9 earthquake struck 13 km WNW of Huron, California on Fri, Apr 20, 1984, 12:17 PM PST (20:17 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M2.0 25 km NNE of King City, 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: 179 in the 60 days after this one and 18 in the 30 days before it.

The first 60 of 179.

From the USGS Earthquake Hazards Program and its partner networks, event nc15984 (also filed as ci37225). Read Tue, Sep 22, 2026, 8:27 PM UTC.