M 6.9 in Chile on 24 Apr 2017 21:38 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

This earthquake is expected to have a medium humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 6.9M
Depth: 25 Km
Event Date: 24 Apr 2017 21:38 UTC
24 Apr 2017 16:38 Local
Exposed Population: 1500000 people within 100km
Source: NEIC us10008kce
Inserted at: 24 Apr 2017 22:57 UTC
INFORM Coping capacity of the alert score:
3 (Chile)
Maximun Wave Height observed: 0.16 m

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NEIC 1.1 0.2 1.1
us10008kce Scaled population (vector) 0 Max wave scenario 0m  
  C1 earthquake 1 Max wave realtime 0.24m  
  C2 earthquake 0      
  Country Vulnerability 0      
  INFORM_normalised 1      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1165132 1 24 Apr 2017 21:38 6.5M, 10km N/A 1.7 million (in 100km) 0.2m (at 00:29) 00:06 GEOFON
1165134 1 24 Apr 2017 21:38 6.7M, 33km N/A 1.5 million (in 100km) 0.1m (at 00:13) 00:09 NTWC    
1165143 2 24 Apr 2017 21:38 7.1M, 10km 7.33 N/A (in MMI>=VII) 1m (at 00:10) 00:18 NEIC
1165163 1.1 24 Apr 2017 21:38 6.9M, 25km 6.96 5 thousand (in MMI>=VII) 0.2m (at 00:12) 01:18 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.

Estimated Tsunami affected locations

The maximum observed wave height is 0.16m in Valparaiso Cl;
The maximum Wave height is  0.2m in Quintay, Chile. This height is estimated for 24-Apr-2017 21:50:00.

Alert Date (UTC) Name Country Wave height (m)
24-Apr-2017 21:50:00 Quintay Chile  0.2
24-Apr-2017 21:48:38 Laguna_Verde Chile  0.2
24-Apr-2017 21:50:00 Playa_Ancha Chile  0.2
24-Apr-2017 21:50:00 Cerro_Colorado Chile  0.2
24-Apr-2017 21:53:00 Valparaiso Chile  0.2
24-Apr-2017 21:53:00 Renaca_Bajo Chile  0.2
24-Apr-2017 21:53:00 Achupallas Chile  0.2
24-Apr-2017 21:53:00 Yeco Chile  0.2
24-Apr-2017 21:51:38 Concon Chile  0.2
24-Apr-2017 21:53:00 Algarrobo Chile  0.2
24-Apr-2017 21:57:38 Baron Chile  0.1
24-Apr-2017 22:00:38 El_Quisco Chile  0.1
24-Apr-2017 22:36:38 Las_Ramaditas Chile  0.1
24-Apr-2017 21:53:00 Ritoque Chile  0.1
24-Apr-2017 22:03:64 El_Tabo Chile  0.1
24-Apr-2017 22:51:64 El_Romeral Chile  0.1
24-Apr-2017 22:09:64 Caleta_Horcon Chile  0.1
24-Apr-2017 22:09:64 La_Greda Chile  0.1
24-Apr-2017 22:09:64 Quintero Chile  0.1
24-Apr-2017 22:30:64 Cartagena Chile  0.1
24-Apr-2017 22:30:64 Llolleo Chile  0.1
24-Apr-2017 22:30:64 San_Antonio Chile  0.1
24-Apr-2017 22:15:38 Las_Cruces Chile  0.1
24-Apr-2017 22:23:00 La_Boca Chile  0.1
24-Apr-2017 22:15:38 Rocas_de_Santo_Domingo Chile  0.1
24-Apr-2017 22:23:00 Las_Cujas Chile  0.1
24-Apr-2017 22:23:00 Papudo Chile  0.1
24-Apr-2017 22:23:00 Pite Chile  0.1
24-Apr-2017 22:24:64 Matanzas Chile  0.1
24-Apr-2017 22:09:64 Ingeniero_Santa_Maria Chile  0.1
24-Apr-2017 22:09:64 Guaquen Chile  0.1
24-Apr-2017 22:24:64 Navidad Chile  0.1
24-Apr-2017 22:21:64 Conchali Chile  0.1
24-Apr-2017 22:21:64 Los_Vilos Chile  0.1
24-Apr-2017 23:09:64 La_Laguna Chile  0.1

See full locations list (RSS)


Initial conditions

Title: "39km W of Valparaiso"

Fault parameters

  • Latitude: -33.073
  • Longitude: -72.051
  • Length: 44 km
  • Width: 12 km
  • Magnitude: 6.9 M

Okada parameters:

  • Slip: 1.2 m
  • Strike: 7 (geogr angle: north=0, south=180)
  • Dip: 8 degree
  • Rake: 90 degree
  • Depth: 25 km

Calculation parameters

  • Calculation space (lon/lat): -75.051, -36.073, -69.051, -30.073
  • Instead of Step -> use Cell size:.5 minutes

Sea Level

More information

  • Timeline:
    Tsunami calculations performed to this case, click here

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