M 4.6 in Argentina on 23 Jan 2021 19:19 UTC

Hazard models

EQ parameters
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: 4.6M
Depth: 10 Km
Lat/Lon: -31.75 , -68.8721
Event Date: 23 Jan 2021 19:19 UTC
23 Jan 2021 16:19 Local
Exposed Population:
740000 people within 100km
Source: NEIC us7000d2qj
Inserted at: 24 Jan 2021 02:33 UTC
INFORM Coping capacity of the alert score
3.7 (Argentina)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us7000d2qj Scaled population (vector) 6.1  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 0.83  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1354543 0 23 Jan 2021 19:19 4.6M, 10km N/A 740 thousand (in 100km) 07:14 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 , Province of San Juan (population 547,865) . The nearest places are Zonda, La Rinconada, Pedernal, Berros, Aberastain, Rivadavia, Carpintería, Ullún, Marquesado, Cienaguita, and Calingasta.

Radius Population
100 km 740000 people
75 km 680000 people
50 km 590000 people
20 km 1800 people
10 km <1000 people
5 km <1000 people
2 km <1000 people

Affected Provinces

Region Province Country Population
San Juan Argentina 550000 people

Affected populated places

Name Region Province Country City class Population Distance
Zonda San Juan Argentina Village - 26 km
La Rinconada San Juan Argentina Village - 28 km
Pedernal San Juan Argentina Village - 29 km
Berros San Juan Argentina Village - 30 km
Aberastain San Juan Argentina Village - 30 km
Rivadavia San Juan Argentina Village - 31 km
Carpintería San Juan Argentina Village - 31 km
Ullún San Juan Argentina Village - 34 km
Marquesado San Juan Argentina Village - 34 km
Cienaguita San Juan Argentina Village - 39 km
Cañada Honda San Juan Argentina Village - 40 km
San Juan San Juan Argentina City 440000 people 41 km
Las Tapias San Juan Argentina Village - 41 km
Villa Paula de Sarmiento San Juan Argentina Village - 41 km
Médano de Oro San Juan Argentina Village - 43 km
Santa Lucía San Juan Argentina Village - 43 km
Niquivil Nuevo San Juan Argentina Village - 44 km
Guanacache San Juan Argentina Village - 44 km
Nueve de Julio San Juan Argentina Village - 46 km
Retamito San Juan Argentina Village - 48 km
Albardón San Juan Argentina Village - 49 km
Cochagual San Juan Argentina Village - 49 km
Alto de Sierra San Juan Argentina Village - 49 km
Media Agua San Juan Argentina Village - 50 km
Villa Santa Rosa San Juan Argentina Village - 52 km
Las Casuarinas San Juan Argentina Village - 52 km
Las Lomitas San Juan Argentina Village - 54 km
Tres Esquinas San Juan Argentina Village - 54 km
Villa del Salvador San Juan Argentina Village - 55 km
Caucete San Juan Argentina Village - 57 km
Sorocayense San Juan Argentina Village - 58 km
Villa Pituil San Juan Argentina Village - 58 km
Puntilla Blanca San Juan Argentina Village - 58 km
Villa San Isidro San Juan Argentina Village - 58 km
Matagusanos San Juan Argentina Village - 61 km
Tamberías San Juan Argentina Village - 61 km
Pie de Palo San Juan Argentina Village - 63 km
El Salado San Juan Argentina Village - 65 km
Ramblón San Juan Argentina Village - 66 km
Calingasta San Juan Argentina Village - 69 km

see full list

Critical infrastructure

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

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
San Juan Aeroclub 634 0 35 km
San Juan UAQ 597 Civ. Paved Yes 8000 47 km
La Laja 650 0 59 km

Dams

Reservoir Dam Name River Year Distance
Quebrada de Ullum San Juan 1981 37 km

More information

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