M2.7 earthquake 21 km N of Wilsonia, California

A magnitude 2.7 earthquake struck 21 km N of Wilsonia, California on Mon, Oct 9, 2017, 11:43 PM PDT (06:43 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M3.8 12km W of Toms Place, CA. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

2 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

Reviewed by a seismologist.

Distance and direction from each place to the epicenter, with its forecast.

Within 100 km, magnitude 1.5 and up: 162 in the 60 days after this one and 97 in the 30 days before it.

The first 60 of 162.

From the USGS Earthquake Hazards Program and its partner networks, event nc72906876. Read Mon, Oct 5, 2026, 12:02 PM UTC.