M1.9 earthquake 14km WNW of Pinnacles, CA

A magnitude 1.9 earthquake struck 14km WNW of Pinnacles, CA on Mon, Oct 4, 2021, 10:03 PM PDT (05:03 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M4.7 18km NW of San Simeon, CA. This one was a foreshock.

Map

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

1 person reported to the USGS what they felt; the strongest reported shaking was II, 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: 141 in the 60 days after this one and 57 in the 30 days before it.

The first 60 of 141.

From the USGS Earthquake Hazards Program and its partner networks, event nc73633641. Read Sun, Oct 4, 2026, 4:52 AM UTC.