M 6.9 in Indonesia from 19 Aug 2018 14:56 UTC to 14:56

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: 10 Km
Event Date: 19 Aug 2018 14:56 UTC
19 Aug 2018 22:56 Local
Exposed Population: 3730000 people within 100km
Source: GEOFON gfz2018qfjh
Inserted at: 19 Aug 2018 15:02 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 2.9 0.2 2.9
gfz2018qfjh Scaled population (vector) 6.96 Max wave alert 0m  
  C1 earthquake 1.54 Max wave realtime 0.25m  
  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
1224897 2.9 19 Aug 2018 14:56 6.9M, 10km N/A 3.7 million (in 100km) 0.2m (at 00:02) 00:06 GEOFON
1224910 2 19 Aug 2018 14:56 6.9M, 20.31km N/A 690 thousand (in MMI>=VII) 0.1m (at 00:08) 00:21 NEIC
1224938 1.3 19 Aug 2018 14:56 6.9M, 25.62km 7.1 110 thousand (in MMI>=VII) 0.1m (at 00:11) 01:35 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  0.2m in Lombok, Indonesia. This height is estimated for 19-Aug-2018 14:57:38.

Alert Date (UTC) Name Country Wave height (m)
19-Aug-2018 14:57:38 Lombok Indonesia  0.2
19-Aug-2018 16:00:64 Soengian Indonesia  0.2
19-Aug-2018 15:21:38 Lepeloang Indonesia  0.2
19-Aug-2018 15:06:38 Sembelie Indonesia  0.2
19-Aug-2018 15:09:38 Pringgabaja Indonesia  0.2
19-Aug-2018 16:23:00 Pernang Indonesia  0.1
19-Aug-2018 16:14:00 Sunut Indonesia  0.1
19-Aug-2018 17:03:38 Pato_Pedoe Indonesia  0.1
19-Aug-2018 15:02:00 Laboean_Mapin Indonesia  0.1
19-Aug-2018 15:09:38 Bayan Indonesia  0.0

See full locations list (RSS)


Initial conditions

Title: "M6.9 Sumbawa Region. Indonesia"

Fault parameters

  • Latitude: -8.45
  • Longitude: 116.69
  • 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: 10 km

Calculation parameters

  • Calculation space (lon/lat): 113.69, -11.45, 119.69, -5.45
  • 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.