Chile earthquakes

M5.2 earthquake 75 km WNW of Copiapó, Chile

A magnitude 5.2 earthquake struck 75 km WNW of Copiapó, Chile on Wed, Aug 1, 1973, 7:08 AM GMT-4 (11:08 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M6.3 83 km NW of Copiapó, Chile. 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: 5.2 (mb), moderate
Local time: Wed, Aug 1, 1973, 7:08 AM GMT-4
UTC: 1973-08-01 11:08:28 UTC
Depth: 33.0 km (20.5 mi), shallow
Epicenter: 27.147° S, 71.051° W
Region: Chile
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: OPERATOR_ASSIGNED
Stations used: 35

Nearest places

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

Nearby

Within 100 km, magnitude 2.2 and up: 22 in the 60 days after this one and 56 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00002y7 (also filed as iscgem756862). Read Sat, Sep 26, 2026, 5:13 PM UTC.