M 4.6 in Chile on 21 Jan 2018 14:42 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: 4.6M
Depth: 7.4 Km
Lat/Lon: -36.0229 , -73.4106
Event Date: 21 Jan 2018 14:42 UTC
21 Jan 2018 09:42 Local
Exposed Population:
740000 people within 100km
Source: NEIC us2000cm4u
Inserted at: 21 Jan 2018 15:15 UTC
INFORM Coping capacity of the alert score
3 (Chile)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us2000cm4u Scaled population (vector) 4.91  
  C1 earthquake 1.44  
  C2 earthquake -1.48  
  Country Vulnerability -0.64  
  INFORM_normalised 0.75  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1195005 0 21 Jan 2018 14:42 4.6M, 7.4km N/A 750 thousand (in 100km) 00:32 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 Bio-Bio (population 1,789,433) . The nearest places are Bellavista, Cielo, Mellinto, Buchupureo, Pullay, Arinia, Colmuyao, Trogualemo, Chañihue, Frutillar, and Concepción.

Radius Population
100 km 810000 people
75 km 25000 people
50 km no people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Bio-Bio Chile 1.8 million people
Maule Chile 860000 people
Araucania Chile 810000 people
Libertador General Bernardo O'Higgins Chile 720000 people
Neuquen Argentina 400000 people
Mendoza Argentina 1.5 million people
Valparaiso Chile 1.4 million people
Region Metropolitana Chile 5.2 million people
Los Lagos Chile 980000 people
Coquimbo Chile 520000 people
La Pampa Argentina 270000 people
Rio Negro Argentina 530000 people
San Juan Argentina 550000 people

Affected populated places

Name Region Province Country City class Population Distance
Bellavista Bio-Bio Chile Village - 57 km
Cielo Bio-Bio Chile Village - 57 km
Mellinto Bio-Bio Chile Village - 57 km
Buchupureo Bio-Bio Chile Village - 58 km
Pullay Bio-Bio Chile Village - 58 km
Arinia Bio-Bio Chile Village - 58 km
Colmuyao Bio-Bio Chile Village - 58 km
Trogualemo Maule Chile Village - 60 km
Chañihue Bio-Bio Chile Village - 63 km
Frutillar Bio-Bio Chile Village - 63 km
Boca de Itata Bio-Bio Chile Village - 64 km
Las Quilas Bio-Bio Chile Village - 64 km
Quile Bio-Bio Chile Village - 64 km
Vegos de Itata Bio-Bio Chile Village - 66 km
Cajón de Mela Bio-Bio Chile Village - 66 km
La Pita Bio-Bio Chile Village - 66 km
Ramadillas Bío-Bío Chile Village - 67 km
Puaún Bio-Bio Chile Village - 68 km
Chanco Bio-Bio Chile Village - 68 km
Chevelle Maule Chile Village - 68 km
Canelillos Maule Chile Village - 69 km
Quilquén Bio-Bio Chile Village - 69 km
Los Morros Bío-Bío Chile Village - 69 km
Concepción Bio-Bio Chile Major city 210000 people 95 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
Carriel Sur International CCP 12 Civ. Paved Yes 7500 89 km

Ports

Name LOCODE Country Distance
Tome CLTOM Chile 78 km
Talcahuano CLTAL Chile 78 km
Talca CLTLX Chile 79 km
San Vicente CLSVE Chile 82 km
Lirquen CLLQN Chile 84 km

More information

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