M 7.1 in Chile on 25 Mar 2012 22:37 UTC

Hazard models

EQ parameters
Shakemap
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: 7.1M
Depth: 34.8 Km
Lat/Lon: -35.183 , -71.7922
Event Date: 25 Mar 2012 22:37 UTC
25 Mar 2012 19:37 Local
Exposed Population:
1070000 people within 100km
Source: NEIC usc0008pwq
Inserted at: 02 Feb 2017 13:09 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NEIC 1.2 0 1.2
usc0008pwq Scaled population (vector) n.a Max wave scenario 0m  
  C1 earthquake n.a Max wave realtime 0m  
  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
115731 0.7 25 Mar 2012 22:37 7.2M, 10km N/A 200 thousand (in 100km) 0.8m (at 00:20) 1774d 14:32 NEIC
115732 1.2 25 Mar 2012 22:37 7.2M, 30km N/A 1.1 million (in 100km) 0m (at 00:00) 1774d 14:32 NEIC
115733 1.2 25 Mar 2012 22:37 7.1M, 34.8km N/A 1.1 million (in 100km) 0m (at 00:00) 1774d 14:32 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 Chile , Region of Maule (population 862,719) . The nearest places are Constitución, El Peral, Junquillar, San Antonio, Calabozo, La Ovejería, Carrizal, Guilleumo, Los Espinos, Chanquiuque, and Tejería.

Radius Population
100 km 200000 people
75 km 110000 people
50 km 48000 people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Maule Chile 860000 people
Libertador General Bernardo O'Higgins Chile 720000 people
Bio-Bio Chile 1.8 million people
Valparaiso Chile 1.4 million people
Region Metropolitana Chile 5.2 million people
Mendoza Argentina 1.5 million people
Neuquen Argentina 400000 people
Araucania Chile 810000 people
Coquimbo Chile 520000 people
San Juan Argentina 550000 people
La Pampa Argentina 270000 people
Los Lagos Chile 980000 people

Affected populated places

Name Region Province Country City class Population Distance
Constitución Maule Chile Village 46000 people 32 km
El Peral Maule Chile Village - 33 km
Junquillar Maule Chile Village - 34 km
San Antonio Maule Chile Village - 35 km
Calabozo Maule Chile Village - 37 km
La Ovejería Maule Chile Village - 38 km
Carrizal Maule Chile Village - 40 km
Guilleumo Maule Chile Village - 41 km
Los Espinos Maule Chile Village - 41 km
Chanquiuque Maule Chile Village - 42 km
Cañete Maule Chile Village - 43 km
Carrizalillo Maule Chile Village - 44 km
Los Quillayes Maule Chile Village - 44 km
Casas Fundo El Médano Maule Chile Village - 45 km
Peralillo Maule Chile Village - 45 km
El Peñón Maule Chile Village - 46 km
La Puente Maule Chile Village - 46 km
Los Huesos Maule Chile Village - 48 km
Cabeza de Vaca Maule Chile Village - 48 km
Iloca Maule Chile Village - 48 km
Loma Blanca Maule Chile Village - 49 km
Comunidad El Guapi Maule Chile Village - 49 km
Loanco Maule Chile Village - 50 km
Huelón Maule Chile Village - 51 km
Agua Buena Maule Chile Village - 51 km
La Higuera Maule Chile Village - 51 km
Pichibudi Maule Chile Village - 52 km
Pellín Maule Chile Village - 52 km
El Rodeo Maule Chile Village - 52 km
Los Treiles Maule Chile Village - 54 km
Lora Maule Chile Village - 55 km
Los Tablones Maule Chile Village - 56 km
Lipimávida Maule Chile Village - 56 km
Coipué Maule Chile Village - 56 km
Pahuil Maule Chile Village - 56 km
Huillín Maule Chile Village - 56 km
Las Puertas Maule Chile Village - 57 km
Curepto Maule Chile Village - 57 km
Trapiche Maule Chile Village - 58 km
La Higuerilla Maule Chile Village - 58 km
Los Lobos Maule Chile Village - 58 km
Pichamán Maule Chile Village - 61 km
Licantén Maule Chile Village - 61 km
Empedrado Maule Chile Village - 62 km
Carreras Cortas Maule Chile Village - 62 km
Tabunco Maule Chile Village - 62 km
Gualleco Maule Chile Village - 63 km
Tanguao Maule Chile Village - 64 km
El Rodeo Maule Chile Village - 64 km
La Montaña Maule Chile Village - 65 km
Batuco Maule Chile Village - 65 km
Docamávida Maule Chile Village - 66 km
Quesería Maule Chile Village - 67 km
Poeta González Bastias Maule Chile Village - 68 km
Chanco Maule Chile Village - 69 km
Vichuquén Maule Chile Village - 69 km
Tejería Maule Chile 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
Quivolgo 14 Civ. Unpaved No 3100 32 km

Ports

Name LOCODE Country Distance
Constitucion Chile 33 km

More information

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