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Chile · Antofagasta Region

M4.7 Earthquake near Antofagasta, Antofagasta Region (Chile)

UTC time: 2026-08-20 04:52:52 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded Content updated:

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

Magnitude
M4.7
Depth
35.3 km
Source
USGS

Antofagasta Region · Antofagasta

Country overview

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About this earthquake

On August 20, 2026 at 04:52 UTC, a magnitude M4.7 earthquake occurred near Antofagasta, Antofagasta Region (Chile). With a focal depth of about 35 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Tremors of this size are distinctly felt and can occasionally cause light damage.

The data is provided by USGS and cross-checked across seismological networks. Chile: over the past 24 hours, QuakeMap24 logged 20 earthquakes, the strongest at M3.8.

Depth profile

Depth profile Depth: 35.3 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 35.3 km
Shallow
35.3 km
35.3 km — shallower than the regional average (99.7 km)
Regional average: 99.7 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

Felt reports

8felt reports at EMSC / LastQuake

Voluntary reports of feeling this earthquake. The count is not an intensity measurement and is not added to USGS DYFI reports.

Data updated: Aug 20, 2026, 5:24 AM UTC · Last checked: Sep 20, 2026, 12:07 AM UTC

Source: EMSC / LastQuake

Tectonic context

Located on the South America Plate.
Near the boundary Nazca ↔ South America · about 102 km away

Volcanoes nearby

  • Negrillar, La
    Distance: 190 km ·Pyroclastic cone(s) ·Elevation: 4'220 m ·Chile
  • Llullaillaco
    Distance: 198 km ·Stratovolcano ·Elevation: 6'739 m ·Last eruption: 1877 ·Chile-Argentina
  • Lastarria
    Distance: 214 km ·Stratovolcano ·Elevation: 5'706 m ·Chile-Argentina
  • Bayo Gorbea, Cerro
    Distance: 219 km ·Complex ·Elevation: 5'413 m ·Chile-Argentina
  • Cordon del Azufre
    Distance: 221 km ·Complex ·Elevation: 5'481 m ·Chile-Argentina
  • Corrida de Cori Volcanic Field
    Distance: 224 km ·Stratovolcano ·Elevation: 5'451 m ·Chile-Argentina

Antofagasta Region

Context for this earthquake

05 Oct 2025 – 05 Oct 2026 · M ≥ 3.0 · 527 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 · Chile

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Country statistics · Chile

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

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