M 6.8 in Fiji from 17 Apr 2015 15:52 UTC to 15:52

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: 50 Km
Event Date: 17 Apr 2015 15:52 UTC
17 Apr 2015 03:52 Local
Exposed Population: No people within 100km
Source: NTWC    
Inserted at: 17 Apr 2015 16:07 UTC

GDACS Score

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

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1076572 0 17 Apr 2015 15:52 6.8M, 50km N/A No people affected (in 100km) 0m (at 00:00) 00:14 NTWC    
1076578 0.5 17 Apr 2015 15:52 6.5M, 10km N/A No people affected (in 100km) 0m (at 00:00) 00:38 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.

Tsunami affected locations

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

See full locations list (RSS)


Initial conditions

Title: " 140km SSW of Sigave"

Fault parameters

  • Latitude: -15.5
  • Longitude: -178.6
  • Length: 39 km
  • Width: 11 km
  • Magnitude: 6.8 M

Okada parameters:

  • Slip: 1 m
  • Strike: 82 (geogr angle: north=0, south=180)
  • Dip: 80 degree
  • Rake: 90 degree
  • Depth: 50 km

Calculation parameters

  • Calculation space (lon/lat): -181.6, -18.5, -175.6, -12.5
  • 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.