Overall Green Earthquake alert in Chile from 21 Dec 2023 16:21 UTC to 16:21

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 5.7 in Chile from 21 Dec 2023 16:21 UTC to 16:21

Hazard models

Rapid Impact

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:	5.7M
Depth:	55.3 Km
Lat/Lon:	-21.9025 , -70.2778
Event Date:	21 Dec 2023 16:21 UTC 21 Dec 2023 13:21 Local
Exposed Population:	6 thousand in MMI V
Source:	NEIC us7000lkpg
Inserted at:	21 Dec 2023 16:43 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
us7000lkpg	Scaled population (raster)	0
	C1 shakemap	0
	C2 shakemap	0
	Country Vulnerability	0
	INFORM_normalised	0

Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1543541		0	21 Dec 2023 16:21	5.7M, 55.3km	5.91	N/A (in MMI>=VII)		00:21	NEIC
1543754		0	21 Dec 2023 16:21	5.6M, 62.9km	4.54	30 thousand (in 100km)		1d 05:57	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 ,of Antofagasta (population 423,780) . The alertlevel for this event is GREEN

Intensity	Population
	<1000 people
	25000 people

Shakemaps Timeline

Shake id #	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
1	1543541	-70.278/-21.902	5.7	55.3	4.876	21 Dec 2023 16:46	00:24	(new episode)
2	1543541	-70.278/-21.902	5.7	55.3	5.92	21 Dec 2023 18:25	02:03	(upd of #1)
3	1543541	-70.278/-21.902	5.7	55.3	5.712	22 Dec 2023 16:40	1d 00:18	(upd of #2)
4	1543541	-70.149/-21.908	5.6	62.9	5.898	22 Dec 2023 17:40	1d 01:18	(upd of #3)

Affected Provinces

Region Province	Country	Population
Antofagasta	Chile	<1000 people
Antofagasta	Chile	10000 people
Antofagasta	Chile	160000 people
Tarapaca	Chile	4500 people
Antofagasta	Chile	5100 people
Tarapaca	Chile	<1000 people
Potosi	Bolivia	<1000 people

Affected populated places. Areas of interest

Name	Region Province	Country	City class	Population	Distance
Tocopilla	Antofagasta	Chile	City	24000 people	22 km
Ojeda	Antofagasta	Chile	Village	-	49 km
Puntillas	Antofagasta	Chile	Village	-	57 km
Rica Aventura	Antofagasta	Chile	Village	-	70 km
Aventura	Antofagasta	Chile	Village	-	70 km
Cobija	Antofagasta	Chile	Village	-	72 km
Toco	Antofagasta	Chile	Village	-	73 km
María Elena	Antofagasta	Chile	Village	-	80 km
Quillagua	Antofagasta	Chile	Village	-	82 km
Coya Sur	Antofagasta	Chile	Village	-	87 km
Vergara	Antofagasta	Chile	Village	-	92 km
Pedro de Valdivia	Antofagasta	Chile	City	-	99 km
Lynch	Antofagasta	Chile	Village	-	109 km
Algorta	Antofagasta	Chile	Village	-	118 km
Lagunas	Tarapacá	Chile	Village	-	120 km
Campamento Esmeralda	Antofagasta	Chile	Village	-	123 km
Buenaventura	Tarapacá	Chile	Village	-	133 km
Mejillones	Antofagasta	Chile	Village	-	134 km
Cerritos Bayos	Antofagasta	Chile	Village	-	142 km
Sierra Gorda	Antofagasta	Chile	Village	-	147 km
Planta Aconcahua	Antofagasta	Chile	Village	-	148 km
Calama	Antofagasta	Chile	City	140000 people	152 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
Barriles	TOQ	975	Civ.	Paved	No	5300	34 km
Maria Elena		1311				0	74 km
Oficina Victoria		1000				0	146 km

Ports

Name	LOCODE	Country	Distance
Tocopilla	CLTOQ	Chile	22 km
Patillos Cove	CLPTI	Chile	128 km
Mejillones	CLMJS	Chile	134 km

More information

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

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
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