M 4.5 in Chile on 21 Nov 2012 22:51 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.

Updated: this report is based on episode 1.

Earthquake Magnitude: 4.5M
Depth: 9.9 Km
Lat/Lon: -33.9784 , -72.1828
Event Date: 21 Nov 2012 22:51 UTC
21 Nov 2012 19:51 Local
Exposed Population:
360000 people within 100km
Source: NEIC usc000dwl1
Inserted at: 21 Nov 2012 23:43 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
usc000dwl1 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
121004 0.5 21 Nov 2012 22:52 5.2M, 9.8km N/A 630 thousand (in 100km) 00:20 NEIC
121005 0.5 21 Nov 2012 22:51 4.5M, 9.9km N/A 360 thousand (in 100km) 00:51 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 Libertador General Bernardo O'Higgins (population 718,504) . The nearest places are Tumán, El Guanaco, Matanzas, Valle Negro, El Tonel, El Maitén, El Arco, La Patagüilla, Navidad, La Boca, and Alto de los Padillas.

Radius Population
100 km 490000 people
75 km 200000 people
50 km 32000 people
20 km 1600 people
10 km <1000 people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Libertador General Bernardo O'Higgins Chile 720000 people
Valparaiso Chile 1.4 million people

Affected populated places

Name Region Province Country City class Population Distance
Tumán Libertador General Bernado O'Higgins Chile Village - 10 km
El Guanaco Libertador General Bernado O'Higgins Chile Village - 11 km
Matanzas Libertador General Bernado O'Higgins Chile Village - 15 km
Valle Negro Libertador General Bernado O'Higgins Chile Village - 17 km
El Tonel Libertador General Bernado O'Higgins Chile Village - 17 km
El Maitén Libertador General Bernado O'Higgins Chile Village - 17 km
El Arco Libertador General Bernado O'Higgins Chile Village - 19 km
La Patagüilla Libertador General Bernado O'Higgins Chile Village - 19 km
Navidad Libertador General Bernado O'Higgins Chile Village - 19 km
La Boca Libertador General Bernado O'Higgins Chile Village - 19 km
Quiñicabe Libertador General Bernado O'Higgins Chile Village - 20 km
Licancheo Libertador General Bernado O'Higgins Chile Village - 22 km
San Vicente Libertador General Bernado O'Higgins Chile Village - 23 km
San Vicente de Arrayanes Libertador General Bernado O'Higgins Chile Village - 23 km
El Culenar Libertador General Bernado O'Higgins Chile Village - 25 km
Villa de Cartagena Libertador General Bernado O'Higgins Chile Village - 26 km
Rapel Libertador General Bernado O'Higgins Chile Village - 27 km
El Rosario Libertador General Bernado O'Higgins Chile Village - 29 km
Cartagena Libertador General Bernado O'Higgins Chile Village - 30 km
Ranquilco Libertador General Bernado O'Higgins Chile Village - 31 km
Los Manantiales Libertador General Bernado O'Higgins Chile Village - 33 km
Colegio de Bucalemu Valparaiso Chile Village - 33 km
Los Ranchones Libertador General Bernado O'Higgins Chile Village - 36 km
La Matancilla Libertador General Bernado O'Higgins Chile Village - 36 km
La Aguada Libertador General Bernado O'Higgins Chile Village - 38 km
La Estrella Libertador General Bernado O'Higgins Chile Village - 39 km
El Cuzco Libertador General Bernado O'Higgins Chile Village - 41 km
Comunidad de Quelentaro Libertador General Bernado O'Higgins Chile Village - 41 km
Pichilemu Libertador General Bernado O'Higgins Chile Village - 42 km
El Chagaray Region Metropolitana Chile Village - 43 km
Coipué Libertador General Bernado O'Higgins Chile Village - 44 km
San Enrique Region Metropolitana Chile Village - 46 km
Viluco Libertador General Bernado O'Higgins Chile Village - 46 km
Larraín Alcalde Libertador General Bernado O'Higgins Chile Village - 47 km
El Convento Valparaíso Chile Village - 48 km
Chacurra Libertador General Bernado O'Higgins Chile Village - 48 km
Marchigüe Libertador General Bernado O'Higgins Chile Village - 48 km
Quilamuta Region Metropolitana Chile Village - 49 km
Ciruelos Libertador General Bernado O'Higgins Chile Village - 49 km
Chequén Libertador General Bernado O'Higgins Chile Village - 49 km
El Prado Region Metropolitana Chile Village - 49 km
Loica Region Metropolitana Chile Village - 49 km
Cardonal Libertador General Bernado O'Higgins Chile Village - 50 km
Las Chacras Libertador General Bernado O'Higgins Chile Village - 50 km
Túnel del Árbol Libertador General Bernado O'Higgins Chile Village - 50 km
Alto Ramírez Libertador General Bernado O'Higgins Chile Village - 51 km
Cardillos Libertador General Bernado O'Higgins Chile Village - 51 km
El Encañado Region Metropolitana Chile Village - 51 km
Posada Lilén Valparaiso Chile Village - 52 km
Quincanque Region Metropolitana Chile Village - 53 km
Alcones Libertador General Bernado O'Higgins Chile Village - 53 km
Los Maitenes Libertador General Bernado O'Higgins Chile Village - 53 km
Cáhuil Libertador General Bernado O'Higgins Chile Village - 54 km
El Crucero Region Metropolitana Chile Village - 54 km
Las Pataguas Region Metropolitana Chile Village - 54 km
La Esperanza Libertador General Bernado O'Higgins Chile Village - 54 km
La Villa Libertador General Bernado O'Higgins Chile Village - 55 km
Yerbas Buenas Libertador General Bernado O'Higgins Chile Village - 55 km
Las Balsas Libertador General Bernado O'Higgins Chile Village - 55 km
Marchihue Libertador General Bernado O'Higgins Chile Village - 55 km
Rocas de Santo Domingo Valparaíso Chile Village - 56 km
Las Palmas Libertador General Bernado O'Higgins Chile Village - 56 km
Longovilo Region Metropolitana Chile Village - 58 km
Llolleo Valparaiso Chile Village - 58 km
El Maqui Libertador General Bernado O'Higgins Chile Village - 58 km
San Juan Valparaiso Chile Village - 58 km
Trinidad Libertador General Bernado O'Higgins Chile Village - 58 km
El Rincón Libertador General Bernado O'Higgins Chile Village - 58 km
Marchan Libertador General Bernado O'Higgins Chile Village - 59 km
La Quebrada Libertador General Bernado O'Higgins Chile Village - 59 km
San Antonio Valparaiso Chile City 85000 people 59 km
El Sauce Region Metropolitana Chile Village - 59 km
Manzano Libertador General Bernado O'Higgins Chile Village - 60 km
Llallauquén Libertador General Bernado O'Higgins Chile Village - 61 km
El Durazno Libertador General Bernado O'Higgins Chile Village - 62 km
Las Cruces Libertador General Bernado O'Higgins Chile Village - 63 km
La Ligua Libertador General Bernado O'Higgins Chile Village - 63 km
Rinconada Region Metropolitana Chile Village - 63 km
Pihuchén Libertador General Bernado O'Higgins Chile Village - 64 km
Peña Blanca Libertador General Bernado O'Higgins Chile Village - 64 km
Cuncumén Regíon Metropolitana Chile Village - 64 km
Población Libertador General Bernado O'Higgins Chile Village - 64 km
Nilahue Libertador General Bernado O'Higgins Chile Village - 64 km
Cartagena Valparaiso Chile Village - 64 km
Malvilla Valparaiso Chile Village - 65 km
El Carmen Libertador General Bernado O'Higgins Chile Village - 65 km
Lo Chacón Región Metropolitana Chile Village - 65 km
Reto Libertador General Bernado O'Higgins Chile Village - 65 km
Cerrillos Libertador General Bernado O'Higgins Chile Village - 65 km
Cabeceras Libertador General Bernado O'Higgins Chile Village - 67 km
Molinero Libertador General Bernado O'Higgins Chile Village - 68 km
La Cebada Libertador General Bernado O'Higgins Chile Village - 68 km
Las Cruces Valparaiso Chile Village - 68 km
El Calvario Libertador General Bernado O'Higgins Chile Village - 69 km
Estacion Leyda Valparaiso Chile Village - 69 km
Alto de los Padillas Libertador General Bernado O'Higgins 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
Rapelhuapi 149 Priv. Unpaved No 3200 47 km

Ports

Name LOCODE Country Distance
San Antonio CLSAI Chile 60 km

Dams

Reservoir Dam Name River Year Distance
Rapel Rapel 1968 40 km

More information

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