San Juan, Argentina – Earthquakes

This page summarizes earthquakes in San Juan (Argentina). The most recently recorded event was a magnitude M2.5 earthquake near Angaco on 2026-10-22 18:13:04 UTC. All event lists and map markers are limited to the last 30 days.

Seismic profile â†“

Earthquakes (last 30 days)

Max magnitude (last 30 days)

M4.4

Avg magnitude (last 30 days)

M2.90

Avg depth (last 30 days)

87 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

San Juan · M ≥ 2.0

After source reconciliation, the catalogue contains 1,034 event entries of M2.0 or above for this area and period, spread over 290 days.

Catalogue entries1,03405 Oct 2025 – 05 Oct 2026

Strongest recorded earthquakeM5.5Casuarinas ↗

Depth · median102.0 km1,034 events with valid depth

Last 30 days81Previous 30 days: 137

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 ≥ 2.0

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

Oct2025

Nov2025

145

Dec2025

139

Jan2026

121

Feb2026

Mar2026

Apr2026

May2026

Jun2026

140

Jul2026

138

Aug2026

Sep2026

Oct2026

View data table

Month	Analysis period	Catalogue entries
October 2025 · Partial month	05 Oct 2025 – 31 Oct 2025	13
November 2025	01 Nov 2025 – 30 Nov 2025	9
December 2025	01 Dec 2025 – 31 Dec 2025	145
January 2026	01 Jan 2026 – 31 Jan 2026	139
February 2026	01 Feb 2026 – 28 Feb 2026	121
March 2026	01 Mar 2026 – 31 Mar 2026	30
April 2026	01 Apr 2026 – 30 Apr 2026	58
May 2026	01 May 2026 – 31 May 2026	59
June 2026	01 Jun 2026 – 30 Jun 2026	84
July 2026	01 Jul 2026 – 31 Jul 2026	140
August 2026	01 Aug 2026 – 31 Aug 2026	138
September 2026	01 Sep 2026 – 30 Sep 2026	82
October 2026 · Partial month	01 Oct 2026 – 05 Oct 2026	16

How strong were the earthquakes?

Catalogue entries · 1,034

M 2.0 – < 3.0621

M 3.0 – < 4.0362

M 4.0 – < 5.045

M 5.0 – < 6.06

M ≥ 6.00

At what depth did they occur?

1,034 events with valid depth

0 – < 30 km120

30 – < 70 km19

70 – < 300 km892

300 – 750 km3

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 days81

Previous 30 days137

Median of the eleven previous 30-day periods99

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 San Juan 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 ≥ 2.0

M5.5

Casuarinas

06 Jul 2026 · 08:56 UTC

Depth: 116.0 km · GFZ

View event ↗

M5.5

Caucete

04 Jul 2026 · 13:18 UTC

Depth: 96.0 km · GFZ

View event ↗

M5.2

Caucete

08 Jan 2026 · 14:14 UTC

Depth: 25.0 km · GFZ

View event ↗

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).

18 additional source reports were consolidated during source reconciliation.

Events assigned to San Juan 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.

EMSC1,002
GFZ16
USGS11
ISC2
RESIF2
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 San Juan

San Juan is the capital and largest city of the Argentine province of San Juan in the Cuyo region, located in the Tulúm Valley, west of the San Juan River, at 650 m (2,133 ft) above mean sea level, with a population of around 112,000 as per the 2001 census [INDEC].

Seismic activity in 2026

In 2026, San Juan recorded 939 earthquakes within Argentina. The average magnitude was M2.98. The strongest event reached M5.5.

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

Considering the strongest recorded event in 2026, San Juan is among the Top 5 strongest regions in Argentina (rank #1 by max magnitude).

Located on the South America Plate.

Earthquakes in San Juan (last 30 days)

M2.5

Angaco

2026-10-22 · 18:13 UTC · 93 km

›

M2.8

Villa Ampacama

2026-10-22 · 14:36 UTC · 99 km

›

M3.1

Iglesia

2026-10-22 · 07:26 UTC · 106 km

›