Antofagasta Region, Chile – Earthquakes

This page summarizes earthquakes in Antofagasta Region (Chile). The most recently recorded event was a magnitude M3.2 earthquake near Calama on 2026-09-06 02:44:24 UTC. All event lists and map markers are limited to the last 30 days.

Seismic profile â†“

Earthquakes (last 30 days)

287

Max magnitude (last 30 days)

M5.3

Avg magnitude (last 30 days)

M3.02

Avg depth (last 30 days)

128 km

Seismic profile

Analysis period06 Sep 2025 – 06 Sep 2026Data as of: 06 Sep 2026 · 09:00 UTC

Minimum magnitude

What the data show

Antofagasta Region · M ≥ 2.0

After source reconciliation, the catalogue contains 960 event entries of M2.0 or above for this area and period, spread over 87 days.

Catalogue entries96006 Sep 2025 – 06 Sep 2026

Strongest recorded earthquakeM5.4San Pedro de Atacama ↗

Depth · median120.1 km960 events with valid depth

Last 30 days286Previous 30 days: 360

These figures describe the stored catalogue. Recording, magnitude types and geographic attribution may vary by source and period; completeness has not been established.

06 Sep 2025 – 06 Sep 2026

Earthquakes by month

M ≥ 2.0

Each bar counts events within the selected period. Hatched months are only partially included.

Sep2025

Oct2025

Nov2025

Dec2025

Jan2026

Feb2026

Mar2026

Apr2026

May2026

219

Jun2026

390

Jul2026

297

Aug2026

Sep2026

View data table

Month	Analysis period	Catalogue entries
September 2025 · Partial month	06 Sep 2025 – 30 Sep 2025	2
October 2025	01 Oct 2025 – 31 Oct 2025	0
November 2025	01 Nov 2025 – 30 Nov 2025	0
December 2025	01 Dec 2025 – 31 Dec 2025	0
January 2026	01 Jan 2026 – 31 Jan 2026	0
February 2026	01 Feb 2026 – 28 Feb 2026	0
March 2026	01 Mar 2026 – 31 Mar 2026	0
April 2026	01 Apr 2026 – 30 Apr 2026	0
May 2026	01 May 2026 – 31 May 2026	0
June 2026	01 Jun 2026 – 30 Jun 2026	219
July 2026	01 Jul 2026 – 31 Jul 2026	390
August 2026	01 Aug 2026 – 31 Aug 2026	297
September 2026 · Partial month	01 Sep 2026 – 06 Sep 2026	52

How strong were the earthquakes?

Catalogue entries · 960

M 2.0 – < 3.0566

M 3.0 – < 4.0352

M 4.0 – < 5.040

M 5.0 – < 6.02

M ≥ 6.00

At what depth did they occur?

960 events with valid depth

0 – < 30 km15

30 – < 70 km50

70 – < 300 km895

300 – 750 km0

0 events without valid depth are excluded here.

Depth · median

Half of the available values lie on either side of the median; ties are possible.

Current period in context

Last 30 days286

Previous 30 days360

Median of the eleven previous 30-day periods0

Same magnitude threshold, separate periods. Differences may also reflect changes in recording. No hazard level or forecast is inferred.

Where were earthquakes recorded?

Events assigned to Antofagasta Region in the stored location data are analysed. This is not a radius search. Missing or different attributions are excluded.

The interactive map complements the event links on this page.

Marker size and colour indicate magnitude.

Strongest recorded earthquake

06 Sep 2025 – 06 Sep 2026 · M ≥ 2.0

M5.4

San Pedro de Atacama

27 Jul 2026 · 08:57 UTC

Depth: 107.0 km · USGS

View event ↗

M5.1

San Pedro de Atacama

22 Jul 2026 · 17:34 UTC

Depth: 108.7 km · USGS

View event ↗

M4.7

Antofagasta

20 Aug 2026 · 04:52 UTC

Depth: 35.3 km · USGS

View event ↗

Data and methodology

Analysis period: 06 Sep 2025 09:00 – 06 Sep 2026 09:00 UTC

Data and methodology

Reports are first reconciled using existing event associations. Additional reports from different sources are consolidated only when every pair is within 5 seconds, 10 km and 0.5 magnitude units, source groups do not overlap and exactly one group matches. Ambiguous cases remain separate. The preferred report determines magnitude, time and area; period and magnitude filters are applied afterwards. The start is included and the end excluded (UTC).

8 additional source reports were consolidated during source reconciliation.

Events assigned to Antofagasta Region in the stored location data are analysed. This is not a radius search. Missing or different attributions are excluded.

These figures describe the stored catalogue. Recording, magnitude types and geographic attribution may vary by source and period; completeness has not been established.

Source reports used

The preferred report of each group is counted. Source priority follows the earthquake list. Different magnitude types and recording gaps limit comparability.

EMSC928
USGS20
GFZ9
USP3

The profile is recalculated hourly from the earthquake catalogue. Later source revisions may also change historical values.

Data as of: 06 Sep 2026 · 09:32 UTC

Map (last 30 days)

< 2 2–4 4–5 ≥ 5

About Antofagasta Region

The Antofagasta Region is one of Chile's sixteen first-order administrative divisions. Being the second-largest region of Chile in area, it comprises three provinces, Antofagasta, El Loa and Tocopilla.

Seismic activity in 2026

In 2026, Antofagasta Region recorded 970 earthquakes within Chile. The average magnitude was M3.01. The strongest event reached M5.5.

Based on the number of recorded earthquakes in 2026, Antofagasta Region is currently among the Top 5 most active regions in Chile (rank #1 by count).

Considering the strongest recorded event in 2026, Antofagasta Region is among the Top 5 strongest regions in Chile (rank #4 by max magnitude).

Located on the South America Plate.

Seismic profile

Antofagasta Region · M ≥ 2.0

Earthquakes by month

How strong were the earthquakes?

At what depth did they occur?

Current period in context

Where were earthquakes recorded?

Strongest recorded earthquake

San Pedro de Atacama

San Pedro de Atacama

Antofagasta

Data and methodology

Source reports used

Map (last 30 days)

About Antofagasta Region

Seismic activity in 2026

Earthquakes in Antofagasta Region (last 30 days)