M 6.9 Off-shore on 24 Sep 2016 21:28 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: 6.9M
Depth: 596.34 Km
Event Date: 24 Sep 2016 21:28 UTC
25 Sep 2016 09:28 Local
Exposed Population:
About 987 people within 100km
Source: NEIC us10006scr
Inserted at: 24 Sep 2016 22:03 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NEIC 0 0 0.5
us10006scr 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
1141087 0.5 24 Sep 2016 21:28 6.5M, 605km N/A Few people (in 100km) 0m (at 00:00) 00:07 GEOFON
1141088 0 24 Sep 2016 21:28 6.8M, 592km N/A Few people (in 100km) 0m (at 00:00) 00:10 NTWC    
1141089 0.5 24 Sep 2016 21:28 6.8M, 594.56km 2.76 1 thousand (in 100km) 0m (at 00:00) 00:19 NEIC
1141093 0.5 24 Sep 2016 21:28 6.9M, 596.34km 2.89 Few people (in 100km) 0m (at 00:00) 00:34 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: "99km NNE of Ndoi Island"

Fault parameters

  • Latitude: -19.85
  • Longitude: -178.274
  • 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: 596 km

Calculation parameters

  • Calculation space (lon/lat): -181.274, -22.85, -175.274, -16.85
  • 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.