M1.5 earthquake 17km SSW of Oasis, California

A magnitude 1.5 earthquake struck 17km SSW of Oasis, California on Wed, Apr 16, 2003, 8:15 AM PDT (15:15 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M4.2 4km SSW of Brawley, 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: 196 in the 60 days after this one and 143 in the 30 days before it.

The first 60 of 196.

From the USGS Earthquake Hazards Program and its partner networks, event ci9908557. Read Mon, Oct 5, 2026, 5:38 AM UTC.