M 7.9 in Fiji on 19 Aug 2018 00:19 UTC

Hazard models

EQ parameters
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: 7.9M
Depth: 570.1 Km
Event Date: 19 Aug 2018 00:19 UTC
19 Aug 2018 12:19 Local
Exposed Population: About 1000 people within 100km
Source: PTWC pt18231000
Inserted at: 19 Aug 2018 00:28 UTC
INFORM Coping capacity of the alert score:
1.1 (Fiji)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
PTWC 0 0 0
pt18231000 Scaled population (vector) 0 Max wave alert 0m  
  C1 earthquake 1 Max wave realtime 0m  
  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
1224719 0 19 Aug 2018 00:19 7.8M, 577km N/A 2 thousand (in 100km) 0m (at 00:00) 00:08 GEOFON
1224720 0 19 Aug 2018 00:19 7.9M, 570.1km N/A 2 thousand (in 100km) 0m (at 00:00) 00:08 PTWC
1224721 0 19 Aug 2018 00:19 7.9M, 570km N/A 2 thousand (in 100km) 0m (at 00:00) 00:11 NTWC    
1224722 0.1 19 Aug 2018 00:19 8.2M, 559.56km 4.86 N/A (in MMI>=VII) 0.2m (at 03:08) 00:19 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

Alert Date (UTC) Name Country Wave height (m)

See full locations list (RSS)


Initial conditions

Title: "294km NNE of Ndoi Island"

Fault parameters

  • Latitude: -18.066
  • Longitude: -178.02
  • Length: 141 km
  • Width: 39 km
  • Magnitude: 7.9 M

Okada parameters:

  • Slip: 3.6 m
  • Strike: 90 (geogr angle: north=0, south=180)
  • Dip: 45 degree
  • Rake: 90 degree
  • Depth: 570 km

Calculation parameters

  • Calculation space (lon/lat): -191.52, -31.566, -164.52, -4.566
  • Instead of Step -> use Cell size:2.06 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.