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Argentina · San Juan

M2.7 Earthquake near Ullúm, San Juan (Argentina)

UTC time: 2026-09-23 03:33:34 UTC Local time: —

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About this earthquake

On September 23, 2026 at 03:33 UTC, a magnitude M2.7 earthquake occurred near Ullúm, San Juan (Argentina). At around 79 km, the focal depth places this among intermediate-depth events. Events of this size typically go unnoticed.

The event was recorded by EMSC. Argentina: 11 earthquakes were recorded in the past 24 hours, the strongest reaching M5.3.

Details

ID
19c3ddb2760b158abc218816fbfddd071bc1391e
Magnitude
M2.7
Depth
79.0 km
UTC time
2026-09-23 03:33:34 UTC
Local time
—
Country
Argentina
State
San Juan
City
Ullúm
County
Ullúm
Source
emsc
Coordinates
-31.25000, -68.82000
Temperature
13.1°C

Depth profile

Depth profile Depth: 79 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 79 km
Intermediate
79 km
79 km — shallower than the regional average (142 km)
Regional average: 142 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: 259 km ·Stratovolcano ·Elevation: 5'660 m ·Last eruption: 1987 ·Chile-Argentina
  • San Jose
    Distance: 300 km ·Stratovolcano(es) ·Elevation: 6'070 m ·Last eruption: 1960 ·Chile-Argentina
  • Maipo
    Distance: 338 km ·Caldera ·Elevation: 5'323 m ·Last eruption: 1912 ·Chile-Argentina
  • Atuel, Caldera del
    Distance: 386 km ·Caldera ·Elevation: 5'189 m ·Argentina
  • Palomo
    Distance: 398 km ·Stratovolcano ·Elevation: 4'860 m ·Chile
  • Tinguiririca
    Distance: 421 km ·Stratovolcano ·Elevation: 4'280 m ·Last eruption: 1917 ·Chile

San Juan

Context for this earthquake

23 Sep 2025 – 23 Sep 2026 · M ≥ 2.0 · 1,013 Catalogue entries

Of 1,012 other entries for this area and period, 620 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · Argentina

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