M1.6 earthquake 2 km ESE of Danville, California

A magnitude 1.6 earthquake struck 2 km ESE of Danville, California on Sun, Apr 29, 1990, 10:37 PM PDT (05:37 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.6 7 km E of East Foothills, 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: 175 in the 60 days after this one and 193 in the 30 days before it.

The first 60 of 175.

From the USGS Earthquake Hazards Program and its partner networks, event nc156813. Read Sat, Oct 3, 2026, 5:29 PM UTC.