Argentina · La Rioja

M3.3 Earthquake near Departamento General Ángel V. Peñaloza, La Rioja (Argentina)

UTC time: 2026-09-21 17:38:02 UTC Local time:
Magnitude
M3.3
Depth
16.0 km
Source
EMSC

La Rioja · Departamento General Ángel V. Peñaloza

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About this earthquake

On September 21, 2026 at 17:38 UTC, a magnitude M3.3 earthquake occurred near Departamento General Ángel V. Peñaloza, La Rioja (Argentina). With a focal depth of about 16 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this magnitude are often felt but rarely cause damage.

The data is provided by EMSC and cross-checked across seismological networks. Argentina: 19 earthquakes were recorded in the past 24 hours, the strongest reaching M4.1.

Depth profile

Depth profile Depth: 16 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 16 km
Shallow
16 km
16 km — shallower than the regional average (142.1 km)
Regional average: 142.1 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

  • Distance: 364 km ·Complex ·Elevation: 6'658 m ·Argentina
  • Distance: 368 km ·Stratovolcano(es) ·Elevation: 6'638 m ·Chile-Argentina
  • Distance: 372 km ·Stratovolcano ·Elevation: 6'879 m ·Last eruption: 750 ·Chile-Argentina
  • Distance: 377 km ·Caldera ·Elevation: 4'670 m ·Last eruption: -2300 ·Argentina
  • Distance: 381 km ·Stratovolcano ·Elevation: 6'205 m ·Chile-Argentina
  • Distance: 395 km ·Complex ·Elevation: 5'906 m ·Chile-Argentina

La Rioja

Context for this earthquake

21 Sep 2025 – 21 Sep 2026 · M ≥ 3.0 · 81 Catalogue entries

Of 80 other entries for this area and period, 40 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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Country statistics · Argentina

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