M 4.7 in Chile on 04 May 2021 15:18 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: 4.7M
Depth: 10 Km
Lat/Lon: -33.9029 , -72.3927
Event Date: 04 May 2021 15:18 UTC
04 May 2021 10:18 Local
Exposed Population:
220000 people within 100km
Source: NEIC us7000e00q
Inserted at: 04 May 2021 15:53 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
us7000e00q Scaled population (vector) 4.55  
  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
1373552 0 04 May 2021 15:18 4.7M, 10km N/A 230 thousand (in 100km) 00:34 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 Libertador General Bernardo O'Higgins (population 718,504) . The nearest places are El Guanaco, Tumán, Matanzas, La Boca, El Tonel, Navidad, El Maitén, Valle Negro, La Patagüilla, Licancheo, and Chacurra.

Radius Population
100 km 230000 people
75 km 29000 people
50 km <1000 people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Libertador General Bernardo O'Higgins Chile 720000 people
Valparaiso Chile 1.4 million people
Region Metropolitana Chile 5.2 million people
Maule Chile 860000 people
Coquimbo Chile 520000 people
Mendoza Argentina 1.5 million people
Bio-Bio Chile 1.8 million people
San Juan Argentina 550000 people
Neuquen Argentina 400000 people
Araucania Chile 810000 people
La Pampa Argentina 270000 people
San Luis Argentina 300000 people

Affected populated places

Name Region Province Country City class Population Distance
El Guanaco Libertador General Bernado O'Higgins Chile Village - 47 km
Tumán Libertador General Bernado O'Higgins Chile Village - 47 km
Matanzas Libertador General Bernado O'Higgins Chile Village - 49 km
La Boca Libertador General Bernado O'Higgins Chile Village - 51 km
El Tonel Libertador General Bernado O'Higgins Chile Village - 52 km
Navidad Libertador General Bernado O'Higgins Chile Village - 53 km
El Maitén Libertador General Bernado O'Higgins Chile Village - 53 km
Valle Negro Libertador General Bernado O'Higgins Chile Village - 53 km
La Patagüilla Libertador General Bernado O'Higgins Chile Village - 54 km
Licancheo Libertador General Bernado O'Higgins Chile Village - 55 km
El Arco Libertador General Bernado O'Higgins Chile Village - 55 km
Quiñicabe Libertador General Bernado O'Higgins Chile Village - 57 km
San Vicente Libertador General Bernado O'Higgins Chile Village - 60 km
San Vicente de Arrayanes Libertador General Bernado O'Higgins Chile Village - 60 km
Rapel Libertador General Bernado O'Higgins Chile Village - 61 km
El Culenar Libertador General Bernado O'Higgins Chile Village - 61 km
Colegio de Bucalemu Valparaiso Chile Village - 61 km
Villa de Cartagena Libertador General Bernado O'Higgins Chile Village - 62 km
Los Ranchones Libertador General Bernado O'Higgins Chile Village - 62 km
Pichilemu Libertador General Bernado O'Higgins Chile Village - 64 km
El Rosario Libertador General Bernado O'Higgins Chile Village - 66 km
Cartagena Libertador General Bernado O'Higgins Chile Village - 66 km
Ranquilco Libertador General Bernado O'Higgins Chile Village - 68 km
Los Manantiales Libertador General Bernado O'Higgins Chile Village - 70 km
Chacurra Libertador General Bernado O'Higgins 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
Rapelhuapi 149 Priv. Unpaved No 3200 84 km

Ports

Name LOCODE Country Distance
San Antonio CLSAI Chile 80 km

Dams

Reservoir Dam Name River Year Distance
Rapel Rapel 1968 76 km

More information

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