M 4.5 in Chile on 21 Nov 2012 21:05 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: 4.5M
Depth: Km
Lat/Lon: -22.0464 , -69.1422
Event Date: 21 Nov 2012 21:05 UTC
21 Nov 2012 18:05 Local
Exposed Population:
150000 people within 100km
Source: NEIC usc000dwhc
Inserted at: 22 Nov 2012 00:05 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
usc000dwhc 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
121006 0.5 21 Nov 2012 21:05 4.5M, 80.2km N/A 150 thousand (in 100km) 02:59 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 Antofagasta (population 423,780) . The nearest places are Chuquicamata, Conchi Viejo, Toco, Aventura, Rica Aventura, Oficina Toco, Calama, Ramadas, Nacara, Conchi, and José Francisco Vergara.

Radius Population
100 km 150000 people
75 km 150000 people
50 km 66000 people
20 km <1000 people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Antofagasta Chile 420000 people

Affected populated places

Name Region Province Country City class Population Distance
Chuquicamata Antofagasta Chile City - 37 km
Conchi Viejo Antofagasta Chile Village - 44 km
Toco Antofagasta Chile Village - 46 km
Aventura Antofagasta Chile Village - 48 km
Rica Aventura Antofagasta Chile Village - 49 km
Oficina Toco Antofagasta Chile Village - 49 km
Calama Antofagasta Chile City 140000 people 50 km
Ramadas Antofagasta Chile Village - 50 km
Nacara Antofagasta Chile Village - 53 km
Conchi Antofagasta Chile Village - 53 km
Guacate Antofagasta Chile Village - 55 km
Bomba Vergara Antofagasta Chile Village - 55 km
Calina Antofagasta Chile Village - 55 km
Dupont Antofagasta Chile Village - 56 km
Tapiche Antofagasta Chile Village - 58 km
Río Loa Antofagasta Chile Village - 59 km
Quillagua Antofagasta Chile Village - 59 km
Chíuchíu Antofagasta Chile Village - 61 km
Isla Grande Antofagasta Chile Village - 61 km
Puntillas Antofagasta Chile Village - 62 km
María Elena Antofagasta Chile Village - 62 km
Condoroma Antofagasta Chile Village - 62 km
Coya Sur Antofagasta Chile Village - 62 km
Vergara Antofagasta Chile Village - 63 km
Cerritos Bayos Antofagasta Chile Village - 65 km
Lequena Antofagasta Chile Village - 66 km
Aimani Antofagasta Chile Village - 67 km
José Francisco Vergara Antofagasta Chile Village - 68 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
El Loa CJC 2318 Civ. Paved Yes 9400 56 km
Maria Elena 1311 0 65 km
Barriles TOQ 975 Civ. Paved No 5300 95 km

More information

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