Overall Green Earthquake alert in Chile on 21 Sep 2017 19:58 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 4.5 in Chile on 21 Sep 2017 19:58 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:	89.2 Km
Lat/Lon:	-24.593 , -69.359
Event Date:	21 Sep 2017 19:58 UTC 21 Sep 2017 16:58 Local
Exposed Population:	About 19000 people within 100km
Source:	NEIC us2000asqw
Inserted at:	21 Sep 2017 22:37 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
us2000asqw	Scaled population (vector)	4.18
	C1 earthquake	1
	C2 earthquake	0
	Country Vulnerability	0
	INFORM_normalised	0.83

Maximum expected impact using different data sources.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1181463		0	21 Sep 2017 19:58	4.5M, 89.2km	N/A	20 thousand (in 100km)		02:38	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 Antofagasta (population 423,780) . The nearest places are Los Vientos, Pampa Anita, Lacaile, Pampa Fidelia, Augusta Victoria, Jose Manuel Balmaceda, Pampa Elena, Blanca Estela, Río Frío, Imilac, and Balmaceda.

Radius	Population
100 km	20000 people
75 km	12000 people
50 km	5300 people
20 km	<1000 people
10 km	<1000 people
5 km	no people
2 km	no people

Affected Provinces

Region Province	Country	Population
Antofagasta	Chile	420000 people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Los Vientos	Antofagasta	Chile	Village	-	46 km
Pampa Anita	Antofagasta	Chile	Village	-	51 km
Lacaile	Antofagasta	Chile	Village	-	51 km
Pampa Fidelia	Antofagasta	Chile	Village	-	52 km
Augusta Victoria	Antofagasta	Chile	Village	-	54 km
Jose Manuel Balmaceda	Antofagasta	Chile	Village	-	57 km
Pampa Elena	Antofagasta	Chile	Village	-	58 km
Blanca Estela	Antofagasta	Chile	Village	-	58 km
Río Frío	Antofagasta	Chile	Village	-	59 km
Imilac	Antofagasta	Chile	Village	-	60 km
Oficina san Martin	Antofagasta	Chile	Village	-	62 km
Aguada de Cachinal	Antofagasta	Chile	Village	-	65 km
Zorras	Antofagasta	Chile	Village	-	65 km
Pampa Nacha	Antofagasta	Chile	Village	-	66 km
Balmaceda	Antofagasta	Chile	Village	-	67 km

see full list

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

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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