Chile earthquakes

M4.3 earthquake 87 km W of Diego de Almagro, Chile

A magnitude 4.3 earthquake struck 87 km W of Diego de Almagro, Chile on Tue, Aug 7, 1973, 11:38 PM GMT-4 (03:38 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.7 82 km WSW of Diego de Almagro, Chile. This one was a foreshock.

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The earthquake

Magnitude: 4.3 (mb, body-wave), light
Magnitude from: USGS National Earthquake Information Center
Local time: Tue, Aug 7, 1973, 11:38 PM GMT-4
UTC: 1973-08-08 03:38:39 UTC
Depth: 33.0 km (20.5 mi), shallow
Epicenter: 26.376° S, 70.926° 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: 6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 39 in the 30 days before it.

After

Before

Earthquakes today Chile earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000031b. Read Sun, Oct 4, 2026, 8:08 PM UTC.