Overall Green Earthquake in Argentina on 02 Oct 2025 21:37 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve awareness, information exchange and coordination in the first phase after major sudden-onset disasters.

M 5.7 in Argentina on 02 Oct 2025 21:37 UTC

Hazard models

Rapid Impact

Shakemap

Tsunami

Event summary

This earthquake is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude:	5.7M
Depth:	571.1 Km
Lat/Lon:	-27.0636 , -63.5228
Event Date:	02 Oct 2025 21:37 UTC 02 Oct 2025 18:37 Local
Exposed Population:	1.7 million in MMI II
Source:	NEIC us6000recz
Inserted at:	02 Oct 2025 21:49 UTC
INFORM Coping capacity of the alert score:	3.7 (Argentina)

GDACS Score

For more info on GDACS score click here.

	Earthquake (Shakemap)		GDACS score
NEIC	0		0
us6000recz	Scaled population (raster)	0
	C1 shakemap	0
	C2 shakemap	0
	Country Vulnerability	0
	INFORM_normalised	0
	Score no CC	0

Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.

Episode Timeline

ID	Level	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1663809		0	02 Oct 2025 21:37	5.7M, 571.1km	1.96	N/A (in MMI>=VII)		00:11	NEIC

The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.

The episode that has the last updated information.

* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Exposed population

The earthquake happened in Argentina ,of Santiago del Estero (population 17,674) . The alertlevel for this event is GREEN

Intensity	Population
	no people

Shakemaps Timeline

Shake id #	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
1	1663809	-63.523/-27.064	5.7	571.1	1.981	02 Oct 2025 21:54	00:16	(new episode)
2	1663809	-63.523/-27.064	5.7	571.1	1.983	02 Oct 2025 21:58	00:20	(upd of #1)
3	1663809	-63.523/-27.064	5.7	571.1	1.981	02 Oct 2025 23:54	02:16	(upd of #2)
4	1663809	-63.523/-27.064	5.7	571.1	1.983	04 Oct 2025 14:01	1d 16:23	(upd of #3)

Affected Provinces

Region Province	Country	Population
Santiago del Estero	Argentina	18000 people
Tucuman	Argentina	43000 people
Salta	Argentina	3100 people
Chaco	Argentina	<1000 people
Catamarca	Argentina	<1000 people
Santa Fe	Argentina	no people

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

More information

For a full list of available products related to this event, please refer to the GDACS Resources page.

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