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Argentina · San Juan

M3.1 Earthquake near Calingasta, San Juan (Argentina)

UTC time: 2026-08-20 02:21:51 UTC Local time: —

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About this earthquake

On August 20, 2026 at 02:21 UTC, a magnitude M3.1 earthquake occurred near Calingasta, San Juan (Argentina). At around 91 km, the focal depth places this among intermediate-depth events. Shaking of this size is frequently noticed but usually harmless.

The data is provided by EMSC and cross-checked across seismological networks. Argentina: over the past 24 hours, QuakeMap24 logged 12 earthquakes, the strongest at M3.7.

Details

ID
9b2d1cd912945367eef5ec09da05edf74a5e1e80
Magnitude
M3.1
Depth
91.0 km
UTC time
2026-08-20 02:21:51 UTC
Local time
—
Country
Argentina
State
San Juan
City
Calingasta
County
Calingasta
Source
emsc
Coordinates
-31.94000, -70.16000
Temperature
-14.3°C

Depth profile

Depth profile Depth: 91 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 91 km
Intermediate
91 km
91 km — shallower than the regional average (140.5 km)
Regional average: 140.5 km
Why depth matters

Intermediate-depth quakes are felt across a wider area but usually cause less surface damage.

Depth classes per USGS

Volcanoes nearby

  • Tupungatito
    Distance: 169 km ·Stratovolcano ·Elevation: 5'660 m ·Last eruption: 1987 ·Chile-Argentina
  • San Jose
    Distance: 207 km ·Stratovolcano(es) ·Elevation: 6'070 m ·Last eruption: 1960 ·Chile-Argentina
  • Maipo
    Distance: 249 km ·Caldera ·Elevation: 5'323 m ·Last eruption: 1912 ·Chile-Argentina
  • Atuel, Caldera del
    Distance: 296 km ·Caldera ·Elevation: 5'189 m ·Argentina
  • Palomo
    Distance: 297 km ·Stratovolcano ·Elevation: 4'860 m ·Chile
  • Tinguiririca
    Distance: 320 km ·Stratovolcano ·Elevation: 4'280 m ·Last eruption: 1917 ·Chile

San Juan

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 413 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · Argentina

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Country statistics · Argentina

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View earthquake KPIs, strongest and latest events, and averages for this country.

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