M 6.8 in Chile from 20 Jan 2019 01:32 UTC to 01:32

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: 6.8M
Depth: 53.5 Km
Event Date: 20 Jan 2019 01:32 UTC
19 Jan 2019 22:32 Local
Exposed Population: 590000 people within 100km
Source: PTWC pt19020000
Inserted at: 20 Jan 2019 01:41 UTC
INFORM Coping capacity of the alert score:
3 (Chile)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
PTWC 0.1 0.1 0.1
pt19020000 Scaled population (vector) 5.96 Max wave alert 0.1m  
  C1 earthquake 1.44 Max wave realtime 0.1m  
  C2 earthquake -1.48      
  Country Vulnerability -0.64      
  INFORM_normalised 0.75      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1245627 0.1 20 Jan 2019 01:32 6.8M, 53.5km N/A 600 thousand (in 100km) 0.1m (at 00:26) 00:08 PTWC
1245629 0.1 20 Jan 2019 01:32 6.8M, 54km N/A 610 thousand (in 100km) 0.1m (at 00:33) 00:10 NTWC    
1245632 1 20 Jan 2019 01:32 6.7M, 53.04km 7.47 400 thousand (in MMI>=VII) 0.1m (at 00:32) 00:20 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.

Tsunami affected locations

The maximum Wave height is  0.1m in Espantajos, Chile. This height is estimated for 20-Jan-2019 01:58:32.

Alert Date (UTC) Name Country Wave height (m)
20-Jan-2019 01:58:32 Espantajos Chile  0.1
20-Jan-2019 02:19:16 Huasco Chile  0.1

See full locations list (RSS)


Initial conditions

Title: ""28km WSW of Coquimbo""

Fault parameters

  • Latitude: -30.053
  • Longitude: -71.611
  • Length: 39 km
  • Width: 11 km
  • Magnitude: 6.8 M

Okada parameters:

  • Slip: 1 m
  • Strike: 5 (geogr angle: north=0, south=180)
  • Dip: 15 degree
  • Rake: 90 degree
  • Depth: 54 km

Calculation parameters

  • Calculation space (lon/lat): -74.611, -33.053, -68.611, -27.053
  • 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.