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Chile · Antofagasta Region

M3.1 Earthquake near Antofagasta, Antofagasta Region (Chile)

UTC time: 2026-07-28 03:04:33 UTC Local time: —
Magnitude
M3.1
Depth
73.1 km
Source
EMSC

Antofagasta Region · Antofagasta

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About this earthquake

On July 28, 2026 at 03:04 UTC, a magnitude M3.1 earthquake occurred near Antofagasta, Antofagasta Region (Chile). The earthquake originated at an intermediate depth of about 73 km. Earthquakes of this magnitude are often felt but rarely cause damage.

The data is provided by EMSC and cross-checked across seismological networks. Chile: 32 earthquakes were recorded in the past 24 hours, the strongest reaching M3.5.

Depth profile

Depth profile Depth: 73.1 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 73.1 km
Intermediate
73.1 km
73.1 km — shallower than the regional average (99.4 km)
Regional average: 99.4 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

  • Negrillar, La
    Distance: 89 km ·Pyroclastic cone(s) ·Elevation: 4'220 m ·Chile
  • Llullaillaco
    Distance: 90 km ·Stratovolcano ·Elevation: 6'739 m ·Last eruption: 1877 ·Chile-Argentina
  • Lastarria
    Distance: 110 km ·Stratovolcano ·Elevation: 5'706 m ·Chile-Argentina
  • Corrida de Cori Volcanic Field
    Distance: 117 km ·Stratovolcano ·Elevation: 5'451 m ·Chile-Argentina
  • Cordon del Azufre
    Distance: 120 km ·Complex ·Elevation: 5'481 m ·Chile-Argentina
  • Socompa
    Distance: 120 km ·Stratovolcano ·Elevation: 6'031 m ·Last eruption: -5250 ·Chile-Argentina

Antofagasta Region

Context for this earthquake

14 Sep 2025 – 14 Sep 2026 · M ≥ 3.0 · 441 Catalogue entries

Of 440 other entries for this area and period, 302 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historic earthquake map · Chile

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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 · Chile

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

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