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Argentina · San Juan

M3.9 Earthquake near Ullúm, San Juan (Argentina)

UTC time: 2026-01-31 03:53:12 UTC Local time: —

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About this earthquake

A magnitude M3.9 earthquake was recorded near Ullúm, San Juan (Argentina) on January 31, 2026 at 03:53 UTC. At around 82 km, the focal depth places this among intermediate-depth events. Earthquakes of this magnitude are often felt but rarely cause damage.

The event was recorded by EMSC. Argentina: 9 earthquakes were recorded in the past 24 hours, the strongest reaching M5.1.

Details

ID
d986e37ed49bdb38873561152959db3e95ef9e9d
Magnitude
M3.9
Depth
82.0 km
UTC time
2026-01-31 03:53:12 UTC
Local time
—
Country
Argentina
State
San Juan
City
Ullúm
County
Ullúm
Source
emsc
Coordinates
-31.29000, -68.58000
Temperature
23.9°C

Depth profile

Depth profile Depth: 82 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 82 km
Intermediate
82 km
82 km — shallower than the regional average (143.1 km)
Regional average: 143.1 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: 263 km ·Stratovolcano ·Elevation: 5'660 m ·Last eruption: 1987 ·Chile-Argentina
  • San Jose
    Distance: 304 km ·Stratovolcano(es) ·Elevation: 6'070 m ·Last eruption: 1960 ·Chile-Argentina
  • Maipo
    Distance: 340 km ·Caldera ·Elevation: 5'323 m ·Last eruption: 1912 ·Chile-Argentina
  • Atuel, Caldera del
    Distance: 388 km ·Caldera ·Elevation: 5'189 m ·Argentina
  • Palomo
    Distance: 402 km ·Stratovolcano ·Elevation: 4'860 m ·Chile
  • Risco Plateado
    Distance: 424 km ·Stratovolcano ·Elevation: 4'999 m ·Argentina

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Domingo Faustino Sarmiento AirportArgentina · UAQ · SANU
    34.9 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-09-06

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Historic earthquake map · Argentina

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Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Argentina

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

Stats (last 24h)

Global (24h)
494
Country (24h)
Argentina
9
Current earthquakes in
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