M2.3 earthquake 16 km NW of Parkfield, California

A magnitude 2.3 earthquake struck 16 km NW of Parkfield, California on Mon, Oct 11, 1982, 4:22 PM PDT (23:22 UTC), 4 km (2 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 56 in the 30 days before it.

The first 60 of 196.

From the USGS Earthquake Hazards Program and its partner networks, event nc1080190. Read Sat, Oct 3, 2026, 9:27 AM UTC.