Argentina earthquakes

M4.6 earthquake 42 km WSW of Villa Basilio Nievas, Argentina

A magnitude 4.6 earthquake struck 42 km WSW of Villa Basilio Nievas, Argentina on Thu, Aug 12, 2021, 4:47 AM GMT-3 (07:47 UTC), 108 km (67 mi) below the surface.

A larger quake followed: M4.7 40 km NNW of San Martín, Argentina. This one was a foreshock.

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Map

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

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The earthquake

Magnitude: 4.6 (mb, body-wave), light
Magnitude from: USGS National Earthquake Information Center
Local time: Thu, Aug 12, 2021, 4:47 AM GMT-3
UTC: 2021-08-12 07:47:56 UTC
Depth: 108.2 km (67.2 mi), intermediate-depth
Epicenter: 31.678° S, 69.158° W
Region: Argentina
Felt reports: 1
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was V, moderate shaking.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 7.8 km horizontally, 6.8 km in depth
Magnitude uncertainty: ±0.09
Depth from: From location
Station coverage gap: 87°
Stations used: 71

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 and up: 3 in the 60 days after this one and 4 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000f4fe. Read Sun, Oct 4, 2026, 7:07 PM UTC.