M 4.5 in Chile on 21 Jan 2018 18:04 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: 10 Km
Lat/Lon: -35.9885 , -73.711
Event Date: 21 Jan 2018 18:04 UTC
21 Jan 2018 13:04 Local
Exposed Population:
130000 people within 100km
Source: NEIC us2000cm61
Inserted at: 21 Jan 2018 18:18 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
us2000cm61 Scaled population (vector) 4.13  
  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
1195030 0 21 Jan 2018 18:04 4.5M, 10km N/A 140 thousand (in 100km) 00:13 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) .

Radius Population
100 km 140000 people
75 km no 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
Valparaiso Chile 1.4 million people
Region Metropolitana Chile 5.2 million people
Mendoza Argentina 1.5 million people
Los Lagos Chile 980000 people
Coquimbo Chile 520000 people
La Pampa Argentina 270000 people

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Ports

Name LOCODE Country Distance
Talcahuano CLTAL Chile 95 km
Talca CLTLX Chile 95 km
Tome CLTOM Chile 97 km
San Vicente CLSVE Chile 97 km

More information

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