M 6.9 in Indonesia from 05 Aug 2018 11:46 UTC to 11:46

Event summary

This earthquake is expected to have a high humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 6.9M
Depth: 11 Km
Event Date: 05 Aug 2018 11:46 UTC
05 Aug 2018 19:46 Local
Exposed Population: 3680000 people within 100km
Source: GEOFON gfz2018pfnz
Inserted at: 05 Aug 2018 11:53 UTC
INFORM Coping capacity of the alert score:
4.8 (Indonesia)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
GEOFON 3 0 3
gfz2018pfnz Scaled population (vector) 7.06 Max wave alert 0m  
  C1 earthquake 1.54 Max wave realtime 0.09m  
  C2 earthquake -0.64      
  Country Vulnerability 0.09      
  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
1222764 3 05 Aug 2018 11:46 6.9M, 11km N/A 3.7 million (in 100km) 0.1m (at 01:44) 00:06 GEOFON
1222772 1.5 05 Aug 2018 11:46 7M, 10.48km 7.4 150 thousand (in MMI>=VII) 0.3m (at 00:06) 00:19 NEIC
1222783 2.9 05 Aug 2018 11:46 6.9M, 31km 8.35 2 million (in MMI>=VII) 0.1m (at 00:15) 01:24 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

The maximum Wave height is  0.1m in Lepeloang, Indonesia. This height is estimated for 5-Aug-2018 13:29:38.

Alert Date (UTC) Name Country Wave height (m)
5-Aug-2018 13:29:38 Lepeloang Indonesia  0.1
5-Aug-2018 13:29:38 Soengian Indonesia  0.1
5-Aug-2018 11:49:00 Pringgabaja Indonesia  0.1
5-Aug-2018 11:49:00 Lombok Indonesia  0.1
5-Aug-2018 11:59:64 Sembelie Indonesia  0.1
5-Aug-2018 11:52:00 Bayan Indonesia  0.0
5-Aug-2018 11:53:64 Desa_Anjar Indonesia  0.0

See full locations list (RSS)


Initial conditions

Title: "M6.9 Sumbawa Region. Indonesia"

Fault parameters

  • Latitude: -8.47
  • Longitude: 116.49
  • Length: 44 km
  • Width: 12 km
  • Magnitude: 6.9 M

Okada parameters:

  • Slip: 1.2 m
  • Strike: 271 (geogr angle: north=0, south=180)
  • Dip: 12 degree
  • Rake: 90 degree
  • Depth: 11 km

Calculation parameters

  • Calculation space (lon/lat): 113.49, -11.47, 119.49, -5.47
  • 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.