M1.7 earthquake 3km ESE of Aromas, CA

A magnitude 1.7 earthquake struck 3km ESE of Aromas, CA on Mon, Aug 30, 2021, 4:41 PM PDT (23:41 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M4.0 6km NW of Pinnacles, 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: 119 in the 60 days after this one and 59 in the 30 days before it.

The first 60 of 119.

From the USGS Earthquake Hazards Program and its partner networks, event nc73618126. Read Sun, Oct 4, 2026, 4:21 AM UTC.