M1.9 earthquake 12km WSW of Morongo Valley, CA

A magnitude 1.9 earthquake struck 12km WSW of Morongo Valley, CA on Thu, Apr 25, 1985, 2:05 PM PST (22:05 UTC), 15 km (10 mi) below the surface.

A larger quake followed: M3.7 11km NNE of Aguanga, CA. 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: 185 in the 60 days after this one and 178 in the 30 days before it.

The first 60 of 185.

From the USGS Earthquake Hazards Program and its partner networks, event ci65100. Read Sun, Oct 4, 2026, 6:39 PM UTC.