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Argentina · Catamarca

M2.7 Earthquake near Departamento Antofagasta de la Sierra, Catamarca (Argentina)

UTC time: 2026-10-18 21:38:45 UTC Local time: —
Magnitude
M2.7
Depth
20.0 km
Source
INPRES

Catamarca · Departamento Antofagasta de la Sierra

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About this earthquake

A magnitude M2.7 earthquake was recorded near Departamento Antofagasta de la Sierra, Catamarca (Argentina) on October 18, 2026 at 21:38 UTC. With a focal depth of about 20 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size typically go unnoticed.

The data is provided by INPRES and cross-checked across seismological networks. Argentina: over the past 24 hours, QuakeMap24 logged 18 earthquakes, the strongest at M4.8.

Depth profile

Depth profile Depth: 20 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 20 km
Shallow
20 km
20 km — shallower than the regional average (134 km)
Regional average: 134 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

  • Blanco, Cerro
    Distance: 117 km ·Caldera ·Elevation: 4'670 m ·Last eruption: -2300 ·Argentina
  • Peinado
    Distance: 134 km ·Stratovolcano ·Elevation: 5'741 m ·Argentina
  • Condor, El
    Distance: 155 km ·Stratovolcano ·Elevation: 6'373 m ·Argentina
  • Central Andean Arc at 25.1°S
    Distance: 161 km ·Pyroclastic cone ·Elevation: 4'652 m ·Argentina
  • Falso Azufre
    Distance: 166 km ·Complex ·Elevation: 5'906 m ·Chile-Argentina
  • Cordon del Azufre
    Distance: 168 km ·Complex ·Elevation: 5'481 m ·Chile-Argentina

Catamarca

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 2.0 · 133 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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