San Juan, Argentina – Earthquakes

This page summarizes earthquakes in San Juan (Argentina). The most recently recorded event was a magnitude M2.6 earthquake near Albardón on 2026-09-14 05:11:50 UTC. All event lists and map markers are limited to the last 30 days.

Seismic profile â†“

Earthquakes (last 30 days)

120

Max magnitude (last 30 days)

M4.1

Avg magnitude (last 30 days)

M2.88

Avg depth (last 30 days)

93 km

Seismic profile

Analysis period14 Sep 2025 – 14 Sep 2026Data as of: 14 Sep 2026 · 13:00 UTC

Minimum magnitude

What the data show

San Juan · M ≥ 3.0

After source reconciliation, the catalogue contains 316 event entries of M3.0 or above for this area and period, spread over 165 days.

Catalogue entries31614 Sep 2025 – 14 Sep 2026

Strongest recorded earthquakeM5.5Casuarinas ↗

Depth · median104.0 km316 events with valid depth

Last 30 days38Previous 30 days: 38

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

14 Sep 2025 – 14 Sep 2026

Earthquakes by month

M ≥ 3.0

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

Sep2025

Oct2025

Nov2025

Dec2025

Jan2026

Feb2026

Mar2026

Apr2026

May2026

Jun2026

Jul2026

Aug2026

Sep2026

View data table

Month	Analysis period	Catalogue entries
September 2025 · Partial month	14 Sep 2025 – 30 Sep 2025	0
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	40
February 2026	01 Feb 2026 – 28 Feb 2026	53
March 2026	01 Mar 2026 – 31 Mar 2026	13
April 2026	01 Apr 2026 – 30 Apr 2026	33
May 2026	01 May 2026 – 31 May 2026	26
June 2026	01 Jun 2026 – 30 Jun 2026	41
July 2026	01 Jul 2026 – 31 Jul 2026	56
August 2026	01 Aug 2026 – 31 Aug 2026	42
September 2026 · Partial month	01 Sep 2026 – 14 Sep 2026	12

How strong were the earthquakes?

Catalogue entries · 316

M 3.0 – < 4.0284

M 4.0 – < 5.027

M 5.0 – < 6.05

M ≥ 6.00

At what depth did they occur?

316 events with valid depth

0 – < 30 km37

30 – < 70 km7

70 – < 300 km271

300 – 750 km1

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 days38

Previous 30 days38

Median of the eleven previous 30-day periods31

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

14 Sep 2025 – 14 Sep 2026 · M ≥ 3.0

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: 14 Sep 2025 13:00 – 14 Sep 2026 13:00 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).

11 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.

EMSC298
GFZ9
USGS7
ISC1
RESIF1

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

Data as of: 14 Sep 2026 · 13:32 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 788 earthquakes within Argentina. The average magnitude was M3.00. 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)

M2.6

Albardón

2026-09-14 · 05:11 UTC · 89 km

›

M3.2

Ullúm

2026-09-13 · 17:45 UTC · 78 km

›

M3.1

Iglesia

2026-09-13 · 13:01 UTC · 10 km

›