M 4.8 in Chile on 21 Sep 2017 07:12 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: 4.8M
Depth: 6.87 Km
Lat/Lon: -37.9104 , -73.683
Event Date: 21 Sep 2017 07:12 UTC
21 Sep 2017 04:12 Local
Exposed Population:
210000 people within 100km
Source: NEIC us1000bz70
Inserted at: 21 Sep 2017 07:30 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
us1000bz70 Scaled population (vector) 5.31  
  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
1181244 0 03 Jan 2018 00:30 4.6M, 150.58km N/A N/A (in MMI>=VII) 0m (at 00:00) 00:59 NEIC
1181399 0 21 Sep 2017 07:12 4.8M, 6.87km N/A 220 thousand (in 100km) 00:17 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 Cañete, Pehuén, Hostería Lanalhue, Lebu, Los Notros, El Malo, Los Álamos, Antiguala, Pichihuechui, Caramávida, and Capitán Pastene.

Radius Population
100 km 220000 people
75 km 150000 people
50 km 80000 people
20 km <1000 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

Affected populated places

Name Region Province Country City class Population Distance
Cañete Bio-Bio Chile Village 31000 people 28 km
Pehuén Bio-Bio Chile Village - 30 km
Hostería Lanalhue Bio-Bio Chile Village - 33 km
Lebu Bio-Bio Chile Village 22000 people 34 km
Los Notros Bio-Bio Chile Village - 36 km
El Malo Bio-Bio Chile Village - 36 km
Los Álamos Bio-Bio Chile Village - 38 km
Antiguala Bio-Bio Chile Village - 38 km
Pichihuechui Bio-Bio Chile Village - 38 km
Caramávida Bio-Bio Chile Village - 39 km
Cayucupil Bio-Bio Chile Village - 39 km
Tres Pinos Bio-Bio Chile Village - 40 km
Colonia Alemana Bio-Bio Chile Village - 41 km
Quidico Bio-Bio Chile Village - 41 km
Contulmo Bio-Bio Chile Village - 42 km
Los Cambuchos Bio-Bio Chile Village - 42 km
Tucapel Bio-Bio Chile Village - 44 km
Toldos Bio-Bio Chile Village - 49 km
Tirúa Bío-Bío Chile Village - 50 km
Don Alfonso Bio-Bio Chile Village - 50 km
Purén Araucanía Chile Village - 56 km
Pillimpilli Bio-Bio Chile Village - 56 km
Ipinco Araucania Chile Village - 57 km
Curanilahue Bio-Bio Chile City 30000 people 57 km
Villa Alegre Bio-Bio Chile Village - 58 km
Casa de Piedra Bío-Bío Chile Village - 61 km
Colico Bio-Bio Chile Village - 63 km
Colico Norte Bio-Bio Chile Village - 64 km
Frutillar Bio-Bio Chile Village - 64 km
Cuadaba Araucanía Chile Village - 65 km
Los Laureles Araucania Chile Village - 66 km
San Jose de Colico Bio-Bio Chile Village - 67 km
El Potrerillo Bio-Bio Chile Village - 68 km
Capitán Pastene Araucanía 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
La Playa 8 0 87 km

Ports

Name LOCODE Country Distance
Lebu CLLEB Chile 35 km
Puerto Yana Chile 60 km

More information

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