M 6.5 in Indonesia from 28 Jul 2018 22:47 UTC to 22:47

Hazard models

EQ parameters
Shakemap
Tsunami

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: 6.5M
Depth: 14 Km
Event Date: 28 Jul 2018 22:47 UTC
29 Jul 2018 06:47 Local
Exposed Population: 3660000 people within 100km
Source: GEOFON gfz2018orts
Inserted at: 28 Jul 2018 22:53 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 2.4 0 2.4
gfz2018orts Scaled population (vector) 7.07 Max wave scenario 0m  
  C1 earthquake 1.54 Max wave realtime 0m  
  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
1221687 2.4 28 Jul 2018 22:47 6.5M, 14km N/A 3.7 million (in 100km) 0m (at 00:00) 00:06 GEOFON
1221690 1.5 28 Jul 2018 22:47 6.4M, 7.49km 7.34 150 thousand (in MMI>=VII) 0.1m (at 00:05) 00:16 NEIC
1221723 1.7 28 Jul 2018 22:47 6.4M, 6.39km 7.69 160 thousand (in MMI>=VII) 0m (at 00:05) 06:50 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: "M6.5 Sumbawa Region, Indonesia"

Fault parameters

  • Latitude: -8.47
  • Longitude: 116.51
  • Length: 28 km
  • Width: 7 km
  • Magnitude: 6.5 M

Okada parameters:

  • Slip: .8 m
  • Strike: 271 (geogr angle: north=0, south=180)
  • Dip: 12 degree
  • Rake: 90 degree
  • Depth: 14 km

Calculation parameters

  • Calculation space (lon/lat): 115.01, -9.97, 118.01, -6.97
  • 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.