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Argentina · Catamarca

M3.7 Earthquake near Departamento Antofagasta de la Sierra, Catamarca (Argentina)

UTC time: 2026-09-27 07:39:05 UTC Local time: —
Magnitude
M3.7
Depth
11.0 km
Source
INPRES

Catamarca · Departamento Antofagasta de la Sierra

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About this earthquake

A magnitude M3.7 earthquake was recorded near Departamento Antofagasta de la Sierra, Catamarca (Argentina) on September 27, 2026 at 07:39 UTC. The hypocenter lay relatively close to the surface at around 11 km, increasing how strongly it was felt. Shaking of this size is frequently noticed but usually harmless.

The data is provided by INPRES and cross-checked across seismological networks. Argentina: 18 earthquakes were recorded in the past 24 hours, the strongest reaching M4.7.

Depth profile

Depth profile Depth: 11 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 11 km
Shallow
11 km
11 km — shallower than the regional average (133.7 km)
Regional average: 133.7 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: 114 km ·Caldera ·Elevation: 4'670 m ·Last eruption: -2300 ·Argentina
  • Peinado
    Distance: 130 km ·Stratovolcano ·Elevation: 5'741 m ·Argentina
  • Condor, El
    Distance: 151 km ·Stratovolcano ·Elevation: 6'373 m ·Argentina
  • Central Andean Arc at 25.1°S
    Distance: 156 km ·Pyroclastic cone ·Elevation: 4'652 m ·Argentina
  • Falso Azufre
    Distance: 161 km ·Complex ·Elevation: 5'906 m ·Chile-Argentina
  • Cordon del Azufre
    Distance: 162 km ·Complex ·Elevation: 5'481 m ·Chile-Argentina

Catamarca

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 56 Catalogue entries

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

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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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