M1.8 earthquake 20 km NW of Parkfield, California

A magnitude 1.8 earthquake struck 20 km NW of Parkfield, California on Thu, Oct 14, 1982, 11:42 AM PDT (18:42 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M5.4 22 km SSW of Three Rocks, 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: 196 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 196.

From the USGS Earthquake Hazards Program and its partner networks, event nc1080310. Read Wed, Sep 23, 2026, 8:12 AM UTC.