M2.3 earthquake 7 km S of Sunol, California

A magnitude 2.3 earthquake struck 7 km S of Sunol, California on Thu, Jan 10, 1974, 4:18 AM PDT (11:18 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M4.4 5 km SSW of Gilroy, 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: 161 in the 60 days after this one and 21 in the 30 days before it.

The first 60 of 161.

From the USGS Earthquake Hazards Program and its partner networks, event nc1018362. Read Sun, Oct 4, 2026, 7:58 AM UTC.