M2.4 earthquake 7km N of Aromas, CA

A magnitude 2.4 earthquake struck 7km N of Aromas, CA on Sun, Feb 28, 2021, 8:31 AM PST (16:31 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.6 15km N of Morgan Hill, CA. This one was a foreshock.

Map

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

4 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: 134 in the 60 days after this one and 68 in the 30 days before it.

The first 60 of 134.

From the USGS Earthquake Hazards Program and its partner networks, event nc73529346. Read Sat, Oct 3, 2026, 4:02 PM UTC.