M 4.9 in Off Coast Of Central Chile on 17 Apr 2021 03:50 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: 4.9M
Depth: 10 Km
Lat/Lon: -30.4545 , -72.0753
Event Date: 17 Apr 2021 03:50 UTC
16 Apr 2021 22:50 Local
Exposed Population:
460000 people within 100km
Source: NEIC us6000e2aa
Inserted at: 17 Apr 2021 04:09 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
us6000e2aa Scaled population (vector) 4.83  
  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
1370502 0 17 Apr 2021 03:50 4.9M, 10km N/A 470 thousand (in 100km) 00:18 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 Coquimbo (population 520,420) . The nearest places are Pachingo, Angostura, Puetro Aldea, Los Hornitos, Salala, Soco, Barraza, Tongoy, Alcones, Cerillos, and Peña Blanca.

Radius Population
100 km 470000 people
75 km 34000 people
50 km 4500 people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Coquimbo Chile 520000 people
Atacama Chile 240000 people
San Juan Argentina 550000 people
Valparaiso Chile 1.4 million people
Mendoza Argentina 1.5 million people
Region Metropolitana Chile 5.2 million people
La Rioja Argentina 230000 people
Libertador General Bernardo O'Higgins Chile 720000 people
Catamarca Argentina 270000 people
Maule Chile 860000 people
San Luis Argentina 300000 people

Affected populated places

Name Region Province Country City class Population Distance
Pachingo Coquimbo Chile Village - 51 km
Angostura Coquimbo Chile Village - 51 km
Puetro Aldea Coquimbo Chile Village - 52 km
Los Hornitos Coquimbo Chile Village - 52 km
Salala Coquimbo Chile Village - 58 km
Soco Coquimbo Chile Village - 60 km
Barraza Coquimbo Chile Village - 60 km
Tongoy Coquimbo Chile Village - 60 km
Alcones Coquimbo Chile Village - 63 km
Cerillos Coquimbo Chile Village - 66 km
La Torre Coquimbo Chile Village - 68 km
Guanaquero Coquimbo Chile Village - 68 km
Peña Blanca Coquimbo 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
Santa Rosa de Tabali 239 0 69 km
Las Tacas 43 0 79 km
Ovalle OVL unknown 0 84 km

Ports

Name LOCODE Country Distance
Guayacan CLGYC Chile 88 km
Coquimbo CLCQQ Chile 90 km

Dams

Reservoir Dam Name River Year Distance
Recoleta Recoleta Hurtado 1934 94 km

More information

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