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
(Rapid Impact)		 GDACS score
NEIC 0 0
us7000lkpg Scaled population (raster) 0  
  C1 rapid impact 0  
  C2 rapid impact 0  
  Country Vulnerability 0  
  INFORM_normalised 0  
Maximum expected impact using different data sources.

The green area correspond to areas affected by strong shaking (MMI VI or higher) according to the simulation.


Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1543541 0 21 Dec 2023 16:21 5.7M, 55.3km 4.97 N/A (in MMI>=VII) N/A 00:21 NEIC
1543754 0 21 Dec 2023 16:21 5.6M, 62.9km 4.54 N/A (in MMI>=VII) N/A 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.

Rapid Impact

The results presented below are calculated with the ShakeMap open source software (USGS) using only earthquake hypocenter information to provide a rapid estimation of the ground motion and shaking intensity without taking into account any instrumental observations or earthquake source scaling laws.

Exposed population

The earthquake happened in Chile ,of Antofagasta (population 423,780) . The alertlevel for this event is GREEN

Intensity Population
5900 people

Affected Provinces

Intensity Region Province Country Population
Antofagasta Chile 8200 people
Antofagasta Chile 2900 people
Tarapaca Chile <1000 people

Affected populated places. Areas of interest

Intensity 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

see full list

Critical infrastructure

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

Airports

Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Barriles TOQ 975 Civ. Paved No 5300 34 km

Ports

Intensity Name LOCODE Country Distance
Tocopilla CLTOQ Chile 22 km

More information

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