M2.5 earthquake 19km WNW of Progreso, B.C., MX

A magnitude 2.5 earthquake struck 19km WNW of Progreso, B.C., MX on Mon, May 21, 1979, 8:14 AM PDT (15:14 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.1 4km NE of Westmorland, 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: 198 in the 60 days after this one and 97 in the 30 days before it.

The first 60 of 198.

From the USGS Earthquake Hazards Program and its partner networks, event ci3349244. Read Thu, Oct 1, 2026, 11:21 PM UTC.