M 6.1 in Chile on 28 Jul 2022 04:15 UTC
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: 6.1M
Depth: 54 Km
Lat/Lon: -21.9342 , -70.3404
Event Date: 28 Jul 2022 04:15 UTC
28 Jul 2022 00:15 Local
Exposed Population: About 24000 people in MMI
20 thousand (in MMI>=VII)
Source: NEIC us6000i636
Inserted at: 29 Jul 2022 02:54 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 0.3 0.3
us6000i636 Scaled population (raster) 3.08  
  C1 shakemap -1.16  
  C2 shakemap 0.54  
  Country Vulnerability 0  
  INFORM_normalised 0.75  
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

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1455426 0.1 28 Jul 2022 04:15 6.1M, 44.45km 6.73 8 thousand (in MMI>=VII) 00:22 NEIC
1455491 0.3 28 Jul 2022 04:15 6.1M, 44.74km 6.77 10 thousand (in MMI>=VII) 09:01 NEIC
1455590 0.3 28 Jul 2022 04:15 6.1M, 54km 6.75 20 thousand (in MMI>=VII) 22:38 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 ,of Antofagasta (population 423,780) . The alertlevel for this event is GREEN

Intensity Population
25000 people
<1000 people
1600 people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1455426 -21.981/-70.468 6.1 44.5 5.253 28 Jul 2022 04:39 00:24 (new episode)
2 0 1455426 -21.981/-70.468 6.1 44.5 5.327 28 Jul 2022 04:54 00:39 (upd of #1)
3 0.1 1455426 -21.981/-70.468 6.1 44.5 6.727 28 Jul 2022 06:09 01:54 (upd of #2)
4 0.1 1455491 -21.981/-70.468 6.1 44.5 6.727 28 Jul 2022 06:19 02:04 (new episode)
5 0.3 1455491 -21.951/-70.376 6.1 44.7 6.769 28 Jul 2022 13:18 09:03 (upd of #4)
6 0.3 1455491 -21.951/-70.376 6.1 44.7 6.766 28 Jul 2022 13:45 09:30 (upd of #5)
7 0.3 1455590 -21.934/-70.34 6.1 54.0 6.75 29 Jul 2022 03:40 23:25 (new episode)
8 0.3 1455590 -21.934/-70.34 6.1 54.0 6.75 29 Jul 2022 04:40 1d 00:25 (upd of #7)
9 0.3 1455590 -21.934/-70.34 6.1 54.0 6.749 29 Jul 2022 16:40 1d 12:25 (upd of #8)

Affected Provinces

Intensity Region Province Country Population
Antofagasta Chile 2500 people
Antofagasta Chile 3500 people
Antofagasta Chile <1000 people
Tarapaca Chile no people
Antofagasta Chile 7300 people
Tarapaca Chile 210000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Tocopilla Antofagasta Chile City 24000 people 23 km
Ojeda Antofagasta Chile Village - 53 km
Puntillas Antofagasta Chile Village - 63 km
Cobija Antofagasta Chile Village - 69 km
Rica Aventura Antofagasta Chile Village - 76 km
Aventura Antofagasta Chile Village - 76 km
Toco Antofagasta Chile Village - 79 km
María Elena Antofagasta Chile Village - 84 km
Quillagua Antofagasta Chile Village - 89 km
Coya Sur Antofagasta Chile Village - 90 km
Vergara Antofagasta Chile Village - 95 km
Pedro de Valdivia Antofagasta Chile City - 101 km
Lynch Antofagasta Chile Village - 109 km
Algorta Antofagasta Chile Village - 117 km
Campamento Esmeralda Antofagasta Chile Village - 123 km
Lagunas Tarapacá Chile Village - 126 km
Iquique Tarapacá Chile Major city 220000 people 191 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)
Barriles TOQ 975 Civ. Paved No 5300
Maria Elena 1311 0

Ports

Intensity Name LOCODE Country
Tocopilla CLTOQ Chile
Iquique CLIQQ Chile

More information

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