M 6.6 in Argentina from 19 Jan 2021 02:46 UTC to 02:46
EQ parameters
Tsunami

Event summary

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

Earthquake Magnitude: 6.6M
Depth: 10 Km
Lat/Lon: -31.958 , -68.661
Event Date: 19 Jan 2021 02:46 UTC
18 Jan 2021 23:46 Local
Exposed Population: 860000 people within 100km
Source: PTWC pt21019000
Inserted at: 19 Jan 2021 02:54 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
PTWC 1.2 1.2
pt21019000 Scaled population (vector) 6.09  
  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
1353646 1.2 19 Jan 2021 02:46 6.6M, 10km N/A 860 thousand (in 100km) 00:08 PTWC
1353647 1 19 Jan 2021 02:46 6.6M, 11km N/A 1.1 million (in 100km) 00:09 NTWC
1353649 0 19 Jan 2021 02:46 6.4M, 14.3km 6.41 N/A (in MMI>=VII) 00:17 NEIC
1353652 1.2 19 Jan 2021 02:46 6.4M, 20km 7.16 160 thousand (in MMI>=VII) 00:43 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 Berros, Pedernal, Cañada Honda, Cienaguita, Guanacache, Retamito, Carpintería, Media Agua, Tres Esquinas, Cochagual, and Termas Villavicencio.

Radius Population
100 km 860000 people
75 km 700000 people
50 km 490000 people
20 km 15000 people
10 km 2900 people
5 km 1700 people
2 km 1200 people

Affected Provinces

Region Province Country Population
San Juan Argentina 550000 people
Mendoza Argentina 1.5 million people

Affected populated places

Name Region Province Country City class Population Distance
Berros San Juan Argentina Village - 1 km
Pedernal San Juan Argentina Village - 7 km
Cañada Honda San Juan Argentina Village - 12 km
Cienaguita San Juan Argentina Village - 13 km
Guanacache San Juan Argentina Village - 14 km
Retamito San Juan Argentina Village - 18 km
Carpintería San Juan Argentina Village - 19 km
Media Agua San Juan Argentina Village - 23 km
Tres Esquinas San Juan Argentina Village - 25 km
Cochagual San Juan Argentina Village - 27 km
La Rinconada San Juan Argentina Village - 28 km
Aberastain San Juan Argentina Village - 35 km
Las Casuarinas San Juan Argentina Village - 36 km
Villa Santa Rosa San Juan Argentina Village - 40 km
Ramblón San Juan Argentina Village - 40 km
Primero de Mayo Mendoza Argentina Village - 41 km
Nueve de Julio San Juan Argentina Village - 42 km
Médano de Oro San Juan Argentina Village - 44 km
Rivadavia San Juan Argentina Village - 45 km
Zonda San Juan Argentina Village - 46 km
Capilla del Rosario Mendoza Argentina Village - 46 km
Marquesado San Juan Argentina Village - 49 km
San Juan San Juan Argentina City 440000 people 49 km
Santa Lucía San Juan Argentina Village - 50 km
Caucete San Juan Argentina Village - 50 km
Alto de Sierra San Juan Argentina Village - 52 km
Ullún San Juan Argentina Village - 53 km
Villa Paula de Sarmiento San Juan Argentina Village - 53 km
Pie de Palo San Juan Argentina Village - 54 km
Puntilla Blanca San Juan Argentina Village - 56 km
Las Tapias San Juan Argentina Village - 56 km
Albardón San Juan Argentina Village - 59 km
Villa San Isidro San Juan Argentina Village - 60 km
Capilla San José Mendoza Argentina Village - 61 km
Villa del Salvador San Juan Argentina Village - 62 km
Niquivil Nuevo San Juan Argentina Village - 64 km
Las Lomitas San Juan Argentina Village - 65 km
Vallecito San Juan Argentina Village - 68 km
Termas Villavicencio Mendoza Argentina Village - 70 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 41 km
San Juan UAQ 597 Civ. Paved Yes 8000 49 km
La Laja 650 0 70 km
El Plumerillo MDZ 706 Civ. Paved Yes 9800 98 km

Dams

Reservoir Dam Name River Year Distance
Quebrada de Ullum San Juan 1981 54 km

More information

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