Overall Green Earthquake alert in Chile on 22 Apr 2021 00:17 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

M 5.5 in Chile on 22 Apr 2021 00:17 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:	5.5M
Depth:	7.5 Km
Lat/Lon:	-33.9901 , -72.3393
Event Date:	22 Apr 2021 00:17 UTC 21 Apr 2021 19:17 Local
Exposed Population:	250000 people within 100km
Source:	NEIC us6000e3j6
Inserted at:	22 Apr 2021 00:37 UTC
INFORM Coping capacity of the alert score	3 (Chile)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		GDACS score
NEIC	0		0
us6000e3j6	Scaled population (vector)	0
	C1 shakemap	-1.16
	C2 shakemap	0.54
	Country Vulnerability	0
	INFORM_normalised	0.75

Maximum expected impact using different data sources.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1371390		0	22 Apr 2021 00:17	5.5M, 7.5km	3.93	N/A (in MMI>=VII)		00:19	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 Tumán, El Guanaco, El Tonel, Matanzas, Valle Negro, La Boca, El Maitén, Navidad, El Arco, La Patagüilla, and Túnel del Árbol.

Radius	Population
100 km	250000 people
75 km	36000 people
50 km	4900 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
Mendoza	Argentina	1.5 million people
Coquimbo	Chile	520000 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
Tumán	Libertador General Bernado O'Higgins	Chile	Village	-	40 km
El Guanaco	Libertador General Bernado O'Higgins	Chile	Village	-	41 km
El Tonel	Libertador General Bernado O'Higgins	Chile	Village	-	44 km
Matanzas	Libertador General Bernado O'Higgins	Chile	Village	-	44 km
Valle Negro	Libertador General Bernado O'Higgins	Chile	Village	-	45 km
La Boca	Libertador General Bernado O'Higgins	Chile	Village	-	46 km
El Maitén	Libertador General Bernado O'Higgins	Chile	Village	-	47 km
Navidad	Libertador General Bernado O'Higgins	Chile	Village	-	48 km
El Arco	Libertador General Bernado O'Higgins	Chile	Village	-	48 km
La Patagüilla	Libertador General Bernado O'Higgins	Chile	Village	-	48 km
Licancheo	Libertador General Bernado O'Higgins	Chile	Village	-	50 km
Quiñicabe	Libertador General Bernado O'Higgins	Chile	Village	-	50 km
Los Ranchones	Libertador General Bernado O'Higgins	Chile	Village	-	51 km
San Vicente	Libertador General Bernado O'Higgins	Chile	Village	-	52 km
Villa de Cartagena	Libertador General Bernado O'Higgins	Chile	Village	-	53 km
El Culenar	Libertador General Bernado O'Higgins	Chile	Village	-	53 km
Pichilemu	Libertador General Bernado O'Higgins	Chile	Village	-	53 km
San Vicente de Arrayanes	Libertador General Bernado O'Higgins	Chile	Village	-	53 km
Rapel	Libertador General Bernado O'Higgins	Chile	Village	-	56 km
Cartagena	Libertador General Bernado O'Higgins	Chile	Village	-	58 km
El Rosario	Libertador General Bernado O'Higgins	Chile	Village	-	58 km
Colegio de Bucalemu	Valparaiso	Chile	Village	-	59 km
Chacurra	Libertador General Bernado O'Higgins	Chile	Village	-	59 km
Larraín Alcalde	Libertador General Bernado O'Higgins	Chile	Village	-	61 km
Ranquilco	Libertador General Bernado O'Higgins	Chile	Village	-	61 km
Ciruelos	Libertador General Bernado O'Higgins	Chile	Village	-	61 km
Los Manantiales	Libertador General Bernado O'Higgins	Chile	Village	-	62 km
Cáhuil	Libertador General Bernado O'Higgins	Chile	Village	-	64 km
La Aguada	Libertador General Bernado O'Higgins	Chile	Village	-	65 km
Alto Ramírez	Libertador General Bernado O'Higgins	Chile	Village	-	66 km
La Matancilla	Libertador General Bernado O'Higgins	Chile	Village	-	66 km
La Villa	Libertador General Bernado O'Higgins	Chile	Village	-	67 km
La Estrella	Libertador General Bernado O'Higgins	Chile	Village	-	67 km
Túnel del Árbol	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	77 km

Ports

Name	LOCODE	Country	Distance
San Antonio	CLSAI	Chile	81 km

Dams

Reservoir	Dam Name	River	Year	Distance
	Rapel	Rapel	1968	70 km

More information

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

Disclaimer
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