M 4.6 in Chile on 18 Dec 2014 18:58 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

This is a preliminary assessment. The final GDACS Alert Level has been/will be published using more detailed information.

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

Earthquake Magnitude: 4.6M
Depth: 139.88 Km
Lat/Lon: -21.0343 , -68.7162
Event Date: 18 Dec 2014 18:58 UTC
18 Dec 2014 15:58 Local
Exposed Population:
About 14007 people within 100km
Source: NEIC
Inserted at: 18 Dec 2014 22:55 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC n.a n.a
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
1067610 n.a 18 Dec 2014 18:58 4.6M, 139.88km N/A 10 thousand (in 100km) 03:56 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 Tarapaca (population 350,373) . The nearest places are Collahuasi, Collaguasi, Casa de Piedra, Alojamiento Sallihuinca, Ujina, Chusquina, Tolar, Yuma, Saitoco, Cuesta Apacheta, and Estancia Towe.

Radius Population
100 km 10000 people
75 km 4000 people
50 km 2000 people
20 km <1000 people
10 km <1000 people
5 km <1000 people
2 km no people

Affected Provinces

Region Province Country Population
Tarapaca Chile 350000 people
Antofagasta Chile 420000 people

Affected populated places

Name Region Province Country City class Population Distance
Collahuasi Tarapaca Chile Village - 4 km
Collaguasi Tarapaca Chile Village - 9 km
Casa de Piedra Tarapacá Chile Village - 12 km
Alojamiento Sallihuinca Tarapacá Chile Village - 14 km
Ujina Tarapacá Chile Village - 15 km
Chusquina Tarapaca Chile Village - 22 km
Tolar Tarapacá Chile Village - 23 km
Yuma Antofagasta Chile Village - 23 km
Saitoco Tarapaca Chile Village - 23 km
Cuesta Apacheta Tarapacá Chile Village - 27 km
El Chocal Tarapaca Chile Village - 27 km
Cuspe Potosi Bolivia Village - 28 km
Quehuita Tarapaca Chile Village - 29 km
Aucanquilcha Antofagasta Chile Village - 31 km
Pasaca Tarapacá Chile Village - 31 km
Cautenicsa Tarapaca Chile Village - 34 km
Chela Antofagasta Chile Village - 34 km
Lagunita Potosi Bolivia Village - 36 km
Puquios Antofagasta Chile Village - 37 km
Alojamiento de Quitala Tarapacá Chile Village - 37 km
Cenoicha Potosi Bolivia Village - 38 km
Caya Tarapaca Chile Village - 38 km
Cosca Antofagasta Chile Village - 39 km
Alto de Tuna Tarapaca Chile Village - 40 km
Alto del Molino Tarapaca Chile Village - 43 km
Amincha Antofagasta Chile Village - 43 km
Aguada de Poruncha Potosí Bolivia Village - 43 km
Guatacondo Tarapacá Chile Village - 45 km
Lipita Tarapaca Chile Village - 46 km
Chictusa Tarapaca Chile Village - 46 km
Chela Potosí Bolivia Village - 46 km
Mina San Pedro Tarapaca Chile Village - 47 km
Tamentica Tarapaca Chile Village - 48 km
Laguani Potosí Bolivia Village - 48 km
Tilla Potosi Bolivia Village - 49 km
Buenaventura Antofagasta Chile Village - 50 km
Caracote Antofagasta Chile Village - 51 km
Pacu-Pacu Potosi Bolivia Village - 52 km
Ollagüe Antofagasta Chile Village - 52 km
Loma Potosi Bolivia Village - 53 km
Mani Tarapacá Chile Village - 54 km
Alona Tarapaca Chile Village - 55 km
Chara Tarapacá Chile Village - 56 km
Empexa Potosí Bolivia Village - 59 km
Cahuisa Tarapacá Chile Village - 59 km
Aguada de Jaraloma Potosí Bolivia Village - 61 km
Napa Potosí Bolivia Village - 61 km
Aimani Antofagasta Chile Village - 62 km
Chacarilla Tarapacá Chile Village - 63 km
Coripilla Potosí Bolivia Village - 63 km
La Carillana Potosí Bolivia Village - 63 km
El Algarrobal Tarapacá Chile Village - 64 km
Estancia Laguna Verde Potosí Bolivia Village - 65 km
Lequena Antofagasta Chile Village - 66 km
Ramadas Tarapaca Chile Village - 66 km
Bala Potosí Bolivia Village - 67 km
Manuel Vilca Potosi Bolivia Village - 68 km
Estancia Towe Potosí Bolivia 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
Coposa 3788 0 34 km

More information

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