Mexico earthquakes

M2.5 earthquake 3km NE of Progreso, B.C., MX

A magnitude 2.5 earthquake struck 3km NE of Progreso, B.C., MX on Tue, Aug 20, 1985, 4:23 AM PDT (11:23 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M2.5 7km ENE of Imperial, CA. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.5 (mc), micro
Local time
UTC
1985-08-20 11:23:31 UTC
Depth
15.6 km (9.7 mi), shallow
Epicenter
32.598° N, 115.562° W
Region
Mexico
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from
From location
Station coverage gap
146°
Stations used
0

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 153 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 153.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci110069. Read Wed, Sep 23, 2026, 4:17 AM UTC.