M 6.9 in Fiji on 18 Nov 2018 20:25 UTC

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: 6.9M
Depth: 546.4 Km
Event Date: 18 Nov 2018 20:25 UTC
19 Nov 2018 09:25 Local
Exposed Population: About 6000 people within 100km
Source: PTWC pt18322000
Inserted at: 18 Nov 2018 20:33 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
pt18322000 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
1237461 0 18 Nov 2018 20:25 6.9M, 546.4km N/A 6 thousand (in 100km) 0m (at 00:00) 00:07 PTWC
1237462 0 18 Nov 2018 20:25 6.5M, 547km N/A 6 thousand (in 100km) 0m (at 00:00) 00:07 GEOFON
1237463 0 18 Nov 2018 20:25 6.9M, 546km N/A 6 thousand (in 100km) 0m (at 00:00) 00:09 NTWC    
1237464 0 18 Nov 2018 20:25 6.7M, 533.6km 2.96 N/A (in MMI>=VII) 0m (at 00:00) 00:16 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: ""249km SE of Lambasa""

Fault parameters

  • Latitude: -17.874
  • Longitude: -178.823
  • Length: 44 km
  • Width: 12 km
  • Magnitude: 6.9 M

Okada parameters:

  • Slip: 1.2 m
  • Strike: 90 (geogr angle: north=0, south=180)
  • Dip: 45 degree
  • Rake: 90 degree
  • Depth: 546 km

Calculation parameters

  • Calculation space (lon/lat): -181.823, -20.874, -175.823, -14.874
  • 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.