M 6.5 in Indonesia on 25 Sep 2019 23:46 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: 6.5M
Depth: 29.89 Km
Event Date: 25 Sep 2019 23:46 UTC
26 Sep 2019 08:46 Local
Exposed Population: 200000 people in MMI
760000 people within 100km
Source: NEIC us70005lfd
Inserted at: 26 Sep 2019 00:07 UTC
INFORM Coping capacity of the alert score:
4.8 (Indonesia)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)
Tsunami GDACS score
NEIC 0 0 0
us70005lfd Scaled population (raster) 1.63 Max wave alert 0m  
  C1 shakemap -1.73 Max wave realtime 0m  
  C2 shakemap 0.79      
  Country Vulnerability 0      
  INFORM_normalised 0.96      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1271867 0 25 Sep 2019 23:46 6.5M, 29.89km 6.2 N/A (in MMI>=VII) 0m (at 00:00) 00:20 NEIC
1271870 1.3 25 Sep 2019 23:46 6.5M, 18.16km 7 180 thousand (in MMI>=VII) 0.1m (at 00:04) 1d 00:06 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: ""8km SSE of Kairatu""

Fault parameters

  • Latitude: -3.426
  • Longitude: 128.379
  • Length: 28 km
  • Width: 7 km
  • Magnitude: 6.5 M

Okada parameters:

  • Slip: .8 m
  • Strike: 90 (geogr angle: north=0, south=180)
  • Dip: 45 degree
  • Rake: 90 degree
  • Depth: 30 km

Calculation parameters

  • Calculation space (lon/lat): 126.879, -4.926, 129.879, -1.926
  • Instead of Step -> use Cell size:.25 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.