M 4.7 in Argentina on 18 Sep 2012 03:53 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: 4.7M
Depth: 64.6 Km
Lat/Lon: -31.8963 , -69.2027
Event Date: 18 Sep 2012 03:53 UTC
18 Sep 2012 00:53 Local
Exposed Population:
680000 people within 100km
Source: NEIC usc000cqzs
Inserted at: 18 Sep 2012 04:23 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
usc000cqzs Scaled population (vector) n.a  
  C1 earthquake n.a  
  C2 earthquake n.a  
  Country Vulnerability n.a  
  INFORM_normalised n.a  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
119692 0.5 18 Sep 2012 03:53 4.7M, 64.6km N/A 680 thousand (in 100km) 00:29 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 Villa Pituil, Pedernal, Sorocayense, Cienaguita, Berros, Tamberías, Zonda, Retamito, Guanacache, Carpintería, and Termas Villavicencio.

Radius Population
100 km 730000 people
75 km 430000 people
50 km 32000 people
20 km 2000 people
10 km <1000 people
5 km <1000 people
2 km <1000 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
Villa Pituil San Juan Argentina Village - 41 km
Pedernal San Juan Argentina Village - 43 km
Sorocayense San Juan Argentina Village - 47 km
Cienaguita San Juan Argentina Village - 48 km
Berros San Juan Argentina Village - 50 km
Tamberías San Juan Argentina Village - 55 km
Zonda San Juan Argentina Village - 59 km
Retamito San Juan Argentina Village - 60 km
Guanacache San Juan Argentina Village - 60 km
Carpintería San Juan Argentina Village - 61 km
Cañada Honda San Juan Argentina Village - 61 km
La Rinconada San Juan Argentina Village - 61 km
Aberastain San Juan Argentina Village - 65 km
Rivadavia San Juan Argentina Village - 65 km
Ramblón San Juan Argentina Village - 66 km
Ullún San Juan Argentina Village - 67 km
Calingasta San Juan Argentina Village - 68 km
Marquesado San Juan Argentina Village - 69 km
Termas Villavicencio Mendoza 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 70 km
San Juan UAQ 597 Civ. Paved Yes 8000 82 km
La Laja 650 0 93 km

Dams

Reservoir Dam Name River Year Distance
Quebrada de Ullum San Juan 1981 71 km

More information

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