Antofagasta Region, Chile – Earthquakes

This page summarizes earthquakes in Antofagasta Region (Chile). The most recently recorded event was a magnitude M4.0 earthquake near San Pedro de Atacama on 2026-10-22 00:14:33 UTC. All event lists and map markers are limited to the last 30 days.

Seismic profile ↓
Earthquakes (last 30 days)
343
Max magnitude (last 30 days)
M4.9
Avg magnitude (last 30 days)
M2.98
Avg depth (last 30 days)
136 km

Seismic profile

Analysis period05 Oct 2025 – 05 Oct 2026Data as of: 05 Oct 2026 · 16:00 UTC
Minimum magnitude

The last update is over two hours old. The figures reflect the data timestamp shown below.

What the data show

Antofagasta Region · M ≥ 4.5

After source reconciliation, the catalogue contains 12 event entries of M4.5 or above for this area and period, spread over 11 days.

Catalogue entries1205 Oct 2025 – 05 Oct 2026
Strongest recorded earthquakeM5.4San Pedro de Atacama ↗
Depth · median106.2 km12 events with valid depth
Last 30 days4Previous 30 days: 3

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

05 Oct 2025 – 05 Oct 2026

Earthquakes by month

M ≥ 4.5

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

View data table
MonthAnalysis periodCatalogue entries
October 2025 · Partial month05 Oct 2025 – 31 Oct 20250
November 202501 Nov 2025 – 30 Nov 20250
December 202501 Dec 2025 – 31 Dec 20250
January 202601 Jan 2026 – 31 Jan 20260
February 202601 Feb 2026 – 28 Feb 20260
March 202601 Mar 2026 – 31 Mar 20260
April 202601 Apr 2026 – 30 Apr 20260
May 202601 May 2026 – 31 May 20260
June 202601 Jun 2026 – 30 Jun 20261
July 202601 Jul 2026 – 31 Jul 20264
August 202601 Aug 2026 – 31 Aug 20263
September 202601 Sep 2026 – 30 Sep 20264
October 2026 · Partial month01 Oct 2026 – 05 Oct 20260

How strong were the earthquakes?

Catalogue entries · 12

M 4.5 – < 5.010
M 5.0 – < 6.02
M ≥ 6.00

At what depth did they occur?

12 events with valid depth

0 – < 30 km1
30 – < 70 km1
70 – < 300 km10
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 days4
Previous 30 days3
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

05 Oct 2025 – 05 Oct 2026 · M ≥ 4.5

Data and methodology

Analysis period: 05 Oct 2025 16:00 – 05 Oct 2026 16:00 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).

0 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.

  • USGS10
  • EMSC1
  • USP1

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

Data as of: 05 Oct 2026 · 16:32 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 1493 earthquakes within Chile. The average magnitude was M3.02. 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.

Earthquakes in Antofagasta Region (last 30 days)

M4.0
San Pedro de Atacama
2026-10-22 · 00:14 UTC · 233 km
›
M3.1
San Pedro de Atacama
2026-10-21 · 23:23 UTC · 176 km
›
M3.1
San Pedro de Atacama
2026-10-21 · 23:18 UTC · 224 km
›
M3.1
San Pedro de Atacama
2026-10-21 · 19:47 UTC · 214 km
›
M2.6
Calama
2026-10-21 · 18:40 UTC · 124 km
›
M3.0
San Pedro de Atacama
2026-10-21 · 16:28 UTC · 234 km
›
M2.6
Sierra Gorda
2026-10-21 · 16:20 UTC · 84 km
›
M2.7
Calama
2026-10-21 · 15:03 UTC · 107 km
›
M3.0
San Pedro de Atacama
2026-10-21 · 14:55 UTC · 174 km
›
M4.0
Calama
2026-10-21 · 13:13 UTC · 124 km
›
M2.7
Calama
2026-10-21 · 11:46 UTC · 129 km
›
M2.6
Taltal
2026-10-21 · 11:35 UTC · 52 km
›
M3.0
San Pedro de Atacama
2026-10-21 · 04:40 UTC · 199 km
›
M3.0
San Pedro de Atacama
2026-10-21 · 04:27 UTC · 214 km
›
M2.5
Calama
2026-10-21 · 02:49 UTC · 117 km
›
M2.9
Taltal
2026-10-21 · 02:01 UTC · 51 km
›
M2.5
Antofagasta
2026-10-21 · 00:57 UTC · 64 km
›
M3.2
San Pedro de Atacama
2026-10-21 · 00:54 UTC · 224 km
›
M2.5
Ollagüe
2026-10-21 · 00:51 UTC · 136 km
›
M3.3
Calama
2026-10-20 · 20:28 UTC · 130 km
›
M2.6
Calama
2026-10-20 · 16:14 UTC · 82 km
›
M3.8
Calama
2026-10-20 · 13:52 UTC · 128 km
›
M2.9
Antofagasta
2026-10-20 · 12:15 UTC · 93 km
›
M2.5
Ollagüe
2026-10-20 · 11:02 UTC · 121 km
›
M3.1
San Pedro de Atacama
2026-10-20 · 07:18 UTC · 219 km
›
M2.9
San Pedro de Atacama
2026-10-20 · 07:07 UTC · 199 km
›
M2.9
San Pedro de Atacama
2026-10-20 · 05:52 UTC · 222 km
›
M2.9
María Elena
2026-10-20 · 05:25 UTC · 72 km
›
M3.7
Calama
2026-10-20 · 05:14 UTC · 109 km
›
M2.8
Calama
2026-10-20 · 00:32 UTC · 115 km
›
M3.2
San Pedro de Atacama
2026-10-19 · 21:04 UTC · 239 km
›
M2.9
Calama
2026-10-19 · 18:11 UTC · 116 km
›
M2.5
Calama
2026-10-19 · 15:18 UTC · 130 km
›
M2.5
Calama
2026-10-19 · 14:38 UTC · 109 km
›
M2.9
Calama
2026-10-19 · 11:26 UTC · 106 km
›
M2.8
Calama
2026-10-19 · 09:45 UTC · 145 km
›
M2.6
Calama
2026-10-19 · 06:40 UTC · 134 km
›
M2.7
Calama
2026-10-19 · 05:56 UTC · 97 km
›
M2.7
Sierra Gorda
2026-10-19 · 05:39 UTC · 70 km
›
M2.6
Calama
2026-10-19 · 04:55 UTC · 113 km
›
M2.7
San Pedro de Atacama
2026-10-19 · 01:50 UTC · 105 km
›
M3.2
San Pedro de Atacama
2026-10-19 · 01:46 UTC · 234 km
›
M2.5
Calama
2026-10-19 · 01:18 UTC · 143 km
›
M2.5
San Pedro de Atacama
2026-10-18 · 23:23 UTC · 220 km
›
M2.7
San Pedro de Atacama
2026-10-18 · 22:52 UTC · 265 km
›
M2.5
Sierra Gorda
2026-10-18 · 21:08 UTC · 76 km
›
M2.5
Sierra Gorda
2026-10-18 · 16:57 UTC · 76 km
›
M3.0
Sierra Gorda
2026-10-18 · 14:59 UTC · 100 km
›
M3.5
San Pedro de Atacama
2026-10-18 · 10:57 UTC · 239 km
›
M2.7
Calama
2026-10-18 · 05:29 UTC · 214 km
›
M3.0
San Pedro de Atacama
2026-10-18 · 04:21 UTC · 226 km
›
M2.5
Calama
2026-10-18 · 03:47 UTC · 140 km
›
M3.5
San Pedro de Atacama
2026-10-18 · 02:33 UTC · 226 km
›
M3.4
Calama
2026-10-18 · 00:44 UTC · 121 km
›
M3.5
Calama
2026-10-17 · 23:54 UTC · 122 km
›
M4.2
San Pedro de Atacama
2026-10-17 · 20:29 UTC · 264 km
›
M3.1
Ollagüe
2026-10-17 · 14:12 UTC · 137 km
›
M2.5
Tocopilla
2026-10-17 · 09:47 UTC · 26 km
›
M3.1
Ollagüe
2026-10-17 · 08:59 UTC · 136 km
›
M2.9
Calama
2026-10-17 · 06:46 UTC · 124 km
›
M3.4
San Pedro de Atacama
2026-10-17 · 06:36 UTC · 236 km
›
M2.5
Calama
2026-10-17 · 01:46 UTC · 132 km
›
M2.6
Chiuchiu
2026-10-16 · 22:30 UTC · 90 km
›
M2.7
San Pedro de Atacama
2026-10-16 · 21:24 UTC · 208 km
›
M3.2
San Pedro de Atacama
2026-10-16 · 20:26 UTC · 209 km
›
M3.0
Calama
2026-10-16 · 19:16 UTC · 128 km
›
M2.7
Antofagasta
2026-10-16 · 17:48 UTC · 85 km
›
M2.5
Mejillones
2026-10-16 · 15:45 UTC · 43 km
›
M2.6
San Pedro de Atacama
2026-10-16 · 14:37 UTC · 126 km
›
M3.7
María Elena
2026-10-16 · 12:13 UTC · 30 km
›
M2.6
San Pedro de Atacama
2026-10-16 · 07:55 UTC · 101 km
›
M3.7
María Elena
2026-10-16 · 00:25 UTC · 48 km
›
M2.5
Calama
2026-10-16 · 00:23 UTC · 79 km
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M2.5
Calama
2026-10-16 · 00:04 UTC · 84 km
›
M2.5
Calama
2026-10-15 · 22:45 UTC · 101 km
›
M3.5
Calama
2026-10-15 · 21:57 UTC · 92 km
›
M2.9
Calama
2026-10-15 · 19:55 UTC · 131 km
›
M3.4
San Pedro de Atacama
2026-10-15 · 19:33 UTC · 250 km
›
M3.3
San Pedro de Atacama
2026-10-15 · 19:28 UTC · 224 km
›
M3.4
Calama
2026-10-15 · 19:12 UTC · 113 km
›
M2.7
San Pedro de Atacama
2026-10-15 · 18:47 UTC · 238 km
›
M3.4
San Pedro de Atacama
2026-10-15 · 17:08 UTC · 244 km
›
M3.5
San Pedro de Atacama
2026-10-15 · 16:48 UTC · 232 km
›
M2.6
Calama
2026-10-15 · 16:45 UTC · 115 km
›
M2.5
Calama
2026-10-15 · 15:01 UTC · 118 km
›
M2.8
Sierra Gorda
2026-10-15 · 12:35 UTC · 90 km
›
M2.6
Calama
2026-10-15 · 10:47 UTC · 121 km
›
M2.5
Calama
2026-10-15 · 08:13 UTC · 121 km
›
M2.8
Calama
2026-10-15 · 03:03 UTC · 85 km
›
M2.7
Calama
2026-10-15 · 02:30 UTC · 96 km
›
M2.8
Calama
2026-10-14 · 18:31 UTC · 123 km
›
M2.6
Calama
2026-10-14 · 06:52 UTC · 107 km
›
M3.3
San Pedro de Atacama
2026-10-14 · 06:45 UTC · 204 km
›
M2.8
Calama
2026-10-14 · 06:41 UTC · 140 km
›
M3.0
Sierra Gorda
2026-10-14 · 03:56 UTC · 111 km
›
M2.6
Antofagasta
2026-10-14 · 01:54 UTC · 65 km
›
M4.0
Calama
2026-10-13 · 23:26 UTC · 125 km
›
M4.0
Calama
2026-10-13 · 21:31 UTC · 79 km
›
M3.2
Calama
2026-10-13 · 19:12 UTC · 95 km
›
M2.6
Calama
2026-10-13 · 18:05 UTC · 137 km
›
M2.5
Calama
2026-10-13 · 16:56 UTC · 80 km
›
M2.8
San Pedro de Atacama
2026-10-13 · 15:14 UTC · 229 km
›
M3.9
Taltal
2026-10-13 · 12:38 UTC · 46 km
›
M3.0
Calama
2026-10-13 · 09:56 UTC · 200 km
›
M3.4
San Pedro de Atacama
2026-10-13 · 09:55 UTC · 208 km
›
M2.7
Calama
2026-10-13 · 09:37 UTC · 115 km
›
M2.9
San Pedro de Atacama
2026-10-13 · 09:05 UTC · 201 km
›
M2.6
Ollagüe
2026-10-13 · 08:05 UTC · 152 km
›
M2.7
Ollagüe
2026-10-13 · 07:30 UTC · 162 km
›
M2.9
Calama
2026-10-13 · 06:42 UTC · 106 km
›
M2.7
Tocopilla
2026-10-13 · 06:40 UTC · 60 km
›
M2.5
Calama
2026-10-13 · 05:43 UTC · 101 km
›
M2.7
Calama
2026-10-13 · 05:19 UTC · 123 km
›
M2.7
Calama
2026-10-13 · 02:43 UTC · 100 km
›
M2.7
Calama
2026-10-13 · 01:08 UTC · 92 km
›
M2.5
Calama
2026-10-13 · 01:06 UTC · 128 km
›
M2.5
Calama
2026-10-12 · 23:27 UTC · 83 km
›
M2.7
Calama
2026-10-12 · 20:23 UTC · 112 km
›
M3.1
Calama
2026-10-12 · 20:20 UTC · 138 km
›
M2.8
San Pedro de Atacama
2026-10-12 · 19:56 UTC · 229 km
›