M 4.6 in Chile on 21 May 2015 20:34 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: 4.6M
Depth: 45.38 Km
Lat/Lon: -34.9246 , -71.8351
Event Date: 21 May 2015 20:34 UTC
21 May 2015 17:34 Local
Exposed Population:
1130997 people within 100km
Source: NEIC
Inserted at: 22 May 2015 03:15 UTC

GDACS Score

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

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1081461 0 21 May 2015 20:34 4.6M, 45.38km N/A 1.1 million (in 100km) 06:41 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 Maule (population 862,719) . The nearest places are Patacón, Gualañe, Quilico, Mira Ríos, Docamávida, Quesería, El Membrillo, La Montaña, Vichuquén, and Alcántara.

Radius Population
100 km 1.1 million people
75 km 670000 people
50 km 120000 people
20 km 30000 people
10 km 9800 people
5 km 1400 people
2 km <1000 people

Affected Provinces

Region Province Country Population
Maule Chile 860000 people
Libertador General Bernardo O'Higgins Chile 720000 people

Affected populated places

Name Region Province Country City class Population Distance
Patacón Maule Chile Village - 4 km
Gualañe Maule Chile Village - 7 km
Quilico Maule Chile Village - 8 km
Mira Ríos Maule Chile Village - 12 km
Docamávida Maule Chile Village - 15 km
Quesería Maule Chile Village - 15 km
El Membrillo Libertador General Bernado O'Higgins Chile Village - 16 km
La Montaña Maule Chile Village - 16 km
Vichuquén Maule Chile Village - 16 km
Alcántara Libertador General Bernado O'Higgins Chile Village - 16 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
Panguilemo TLX 113 Priv. Paved No 3500 56 km
Quivolgo 14 Civ. Unpaved No 3100 67 km
Rapelhuapi 149 Priv. Unpaved No 3200 95 km

Ports

Name LOCODE Country Distance
Constitucion Chile 68 km

More information

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