M3.5 earthquake 12km WSW of Progreso, B.C., MX

A magnitude 3.5 earthquake struck 12km WSW of Progreso, B.C., MX on Sat, Apr 15, 1939, 7:52 AM GMT-8 (15:52 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.5 38km E of Primo Tapia, B.C., MX. 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: 5 in the 60 days after this one and 7 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event ci3364959. Read Tue, Sep 22, 2026, 2:12 PM UTC.