M 4.5 in Argentina on 31 Mar 2021 16:09 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: 142.57 Km
Lat/Lon: -36.7185 , -71.0401
Event Date: 31 Mar 2021 16:09 UTC
31 Mar 2021 13:09 Local
Exposed Population:
450000 people within 100km
Source: NEIC us6000dxzt
Inserted at: 31 Mar 2021 21:42 UTC
INFORM Coping capacity of the alert score
3.7 (Argentina)
INFORM Coping capacity of the affected contries: Argentina= 3.7; Chile= 3

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us6000dxzt Scaled population (vector) 4.99  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 0.83  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1367958 0 31 Mar 2021 16:09 4.5M, 142.57km N/A 450 thousand (in 100km) 05:32 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 Argentina , Province of Neuquen (population 402,917) . The nearest places are Coironal, Carrizales, El Chacayal, El Palomar, Pichirrincón, Invernada Vieja, Bella Vista, Bote, Alico, San Fabián de Alico, and Cachapoal.

Radius Population
100 km 450000 people
75 km 54000 people
50 km 13000 people
20 km 1500 people
10 km <1000 people
5 km <1000 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Neuquen Argentina 400000 people
Bio-Bio Chile 1.8 million people

Affected populated places

Name Region Province Country City class Population Distance
Coironal Bio-Bio Chile Village - 20 km
Carrizales Bio-Bio Chile Village - 21 km
El Chacayal Bio-Bio Chile Village - 23 km
El Palomar Neuquén Argentina Village - 25 km
Pichirrincón Bio-Bio Chile Village - 27 km
Invernada Vieja Neuquén Argentina Village - 34 km
Bella Vista Neuquén Argentina Village - 40 km
Bote Neuquen Argentina Village - 42 km
Alico Bio-Bio Chile Village - 43 km
San Fabián de Alico Bio-Bio Chile Village - 49 km
Quideñez Bio-Bio Chile Village - 51 km
Cayanta Neuquén Argentina Village - 53 km
Lileo Neuquén Argentina Village - 54 km
Huinganco Neuquen Argentina Village - 56 km
Casa de Lata Bio-Bio Chile Village - 57 km
La Máquina Bio-Bio Chile Village - 58 km
Los Miches Neuquen Argentina Village - 59 km
Andacollo Neuquén Argentina Village - 61 km
Recinto Bio-Bio Chile Village - 63 km
Coleal Bio-Bio Chile Village - 66 km
Bustamante Bio-Bio Chile Village - 67 km
Cancha Huinganco Neuquen Argentina Village - 67 km
Atacalco Bio-Bio Chile Village - 68 km
Guanaco Neuquén Argentina Village - 68 km
Cato Bio-Bio Chile Village - 68 km
Cachapoal Bio-Bio Chile 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
Las Ovejas 1200 0 41 km
General Bernardo O Higgins YAI 148 Civ. Paved Yes 5400 90 km

Dams

Reservoir Dam Name River Year Distance
Bullileo Bullileo 1949 57 km
Maule Laguna del Maule Maule 1957 89 km

More information

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