M 4.5 in Chile on 31 Oct 2020 11:08 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: 119.08 Km
Lat/Lon: -21.7714 , -68.5317
Event Date: 31 Oct 2020 11:08 UTC
31 Oct 2020 08:08 Local
Exposed Population:
150000 people within 100km
Source: NEIC us7000c8lp
Inserted at: 31 Oct 2020 11:28 UTC
INFORM Coping capacity of the alert score
5.4 (Bolivia)
INFORM Coping capacity of the affected contries: Bolivia= 5.4; Chile= 3

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us7000c8lp Scaled population (vector) 4.5  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 1.04  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1340849 0 31 Oct 2020 11:08 4.5M, 119.08km N/A 150 thousand (in 100km) 00:19 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 Tapiche, Condoroma, Lequena, Calina, Aimani, Conchi Viejo, Conchi, El Ojo de San Pedro, Caracote, Cupo, and Caspana.

Radius Population
100 km 150000 people
75 km 20000 people
50 km 2700 people
20 km <1000 people
10 km <1000 people
5 km <1000 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Antofagasta Chile 420000 people

Affected populated places

Name Region Province Country City class Population Distance
Tapiche Antofagasta Chile Village - 16 km
Condoroma Antofagasta Chile Village - 16 km
Lequena Antofagasta Chile Village - 19 km
Calina Antofagasta Chile Village - 21 km
Aimani Antofagasta Chile Village - 23 km
Conchi Viejo Antofagasta Chile Village - 27 km
Conchi Antofagasta Chile Village - 30 km
El Ojo de San Pedro Antofagasta Chile Village - 31 km
Caracote Antofagasta Chile Village - 39 km
Cupo Antofagasta Chile Village - 44 km
Chela Antofagasta Chile Village - 47 km
Ramaditas Potosí Bolivia Village - 48 km
Topain Antofagasta Chile Village - 48 km
Paniri Antofagasta Chile Village - 49 km
Ayaviri Antofagasta Chile Village - 52 km
Río Loa Antofagasta Chile Village - 53 km
Turi Antofagasta Chile Village - 56 km
Cabana Antofagasta Chile Village - 58 km
Aiquina Antofagasta Chile Village - 60 km
Buenaventura Antofagasta Chile Village - 63 km
Aucanquilcha Antofagasta Chile Village - 64 km
Chíuchíu Antofagasta Chile Village - 64 km
Toconce Antofagasta Chile Village - 66 km
Amincha Antofagasta Chile Village - 67 km
Ollagüe Antofagasta Chile Village - 68 km
El Chocal Tarapaca Chile Village - 68 km
Caspana Antofagasta 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
El Loa CJC 2318 Civ. Paved Yes 9400 89 km

More information

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