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Chile · Antofagasta Region

M5.4 Earthquake near San Pedro de Atacama, Antofagasta Region (Chile)

UTC time: 2026-07-27 08:57:43 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
M5.4
Depth
107.0 km
Source
USGS

Antofagasta Region · San Pedro de Atacama

Country overview

Map

M5.4 Earthquake near San Pedro de Atacama, Antofagasta Region (Chile) · 2026-07-27 — Map showing the location of the epicenter
M5.4 Earthquake near San Pedro de Atacama, Antofagasta Region (Chile) · 2026-07-27 — Map showing the location of the epicenter

About this earthquake

A magnitude M5.4 earthquake was recorded near San Pedro de Atacama, Antofagasta Region (Chile) on July 27, 2026 at 08:57 UTC. The earthquake originated at an intermediate depth of about 107 km. Events of this size can cause damage near the epicenter.

The event was recorded by USGS. Chile: 30 earthquakes were recorded in the past 24 hours, the strongest reaching M3.5.

Depth profile

Depth profile Depth: 107 km (Intermediate) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 107 km
Intermediate
107 km
107 km — close to 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

Felt reports

2felt 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: Jul 27, 2026, 9:06 AM UTC · Last checked: Sep 6, 2026, 12:18 PM UTC

Source: EMSC / LastQuake

Estimated impact

Green No or minimal impact expected.
Estimated population exposed
IV 22'726
4 Felt reports · max reported intensity 2.2

Ground shaking

IV
Light · Intensity (MMI) IV
Felt by many, no damage.

Tectonic context

Located on the South America Plate.
Near the boundary Altiplano ↔ South America · about 227 km away

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation
Calama124.7 kmN166'334
Salta354.8 kmSE520'683

GeoNames · CC BY 4.0

Volcanoes nearby

  • Tilocalar
    Distance: 70 km ·Lava cone(es) ·Elevation: 3'109 m ·Chile
  • Tujle, Cerro
    Distance: 76 km ·Maar ·Elevation: 3'550 m ·Chile
  • Negrillar, La
    Distance: 86 km ·Pyroclastic cone(s) ·Elevation: 4'220 m ·Chile
  • Pular
    Distance: 93 km ·Stratovolcano(es) ·Elevation: 6'233 m ·Chile
  • Miniques
    Distance: 93 km ·Stratovolcano(es) ·Elevation: 5'910 m ·Chile
  • Lascar
    Distance: 94 km ·Stratovolcano(es) ·Elevation: 5'592 m ·Last eruption: 2026 ·Chile

Subsequent earthquakes nearby

Events recorded after this earthquake within 150 km. They are not automatically classified as aftershocks.

First 6 hours3
First 24 hours5
First 72 hours20
Strongest subsequent eventM4.9
M3.62026-07-27 10:24:57 UTC40.9 kmSierra Gorda M3.62026-07-27 10:48:49 UTC135.8 kmSan Pedro de Atacama M3.02026-07-27 13:25:15 UTC11.2 kmSan Pedro de Atacama M3.22026-07-28 02:56:14 UTC149.2 kmMunicipio de San Antonio de los Cobres M3.12026-07-28 03:04:33 UTC143.2 kmAntofagasta M2.62026-07-28 11:30:52 UTC126.3 kmCalama M3.62026-07-28 13:10:04 UTC147.7 kmMunicipio de Tolar Grande M2.52026-07-28 15:25:05 UTC124.2 kmCalama M2.62026-07-28 22:01:35 UTC46.9 kmSierra Gorda M2.92026-07-28 22:13:35 UTC144.5 kmSan Pedro de Atacama M2.72026-07-29 02:38:37 UTC54.5 kmSierra Gorda M2.52026-07-29 04:42:00 UTC77.3 kmSierra Gorda

Comparison of seismic sources

3 sources currently report magnitudes from M5.3 to M5.5.

Measurements can differ because agencies use different networks and calculation methods. Values may be revised.

SourceMagnitudeDepthPosition difference
GFZM5.379.0 km15.7 km
USGSM5.4107.0 km0.0 km
EMSCM5.593.0 km10.6 km

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, 0 have a higher stored magnitude. Different magnitude types and reports not yet merged limit the comparison.

Open seismic profile

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#12
Earlier events M≥4250
Earlier events M≥525
Compared since2025-01-01

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M6.92026-05-25 21:52:20 UTC128.7 kmCalama M6.92026-05-25 21:52:18 UTC126.0 kmCalama M6.92026-05-25 21:52:21 UTC123.7 kmSan Pedro de Atacama M6.82026-05-25 21:52:18 UTC111.2 kmCalama M6.52026-05-25 21:52:10 UTC125.3 kmCalama

Historic earthquake map · Chile

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Chile

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

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