M2.8 earthquake 50km SSW of Progreso, B.C., MX

A magnitude 2.8 earthquake struck 50km SSW of Progreso, B.C., MX on Thu, Apr 26, 1984, 4:37 PM PST (00:37 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.4 1km SSE 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: 191 in the 60 days after this one and 0 in the 30 days before it.

The first 60 of 191.

From the USGS Earthquake Hazards Program and its partner networks, event ci37927. Read Wed, Sep 23, 2026, 5:18 PM UTC.