M 6.2 in Indonesia on 26 Jul 2021 12:09 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: 6.2M
Depth: 10.67 Km
Event Date: 26 Jul 2021 12:09 UTC
26 Jul 2021 20:09 Local
Exposed Population: About 17000 people in MMI VI
350000 people within 100km
Source: NEIC us6000ez5x
Inserted at: 26 Jul 2021 12:38 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
us6000ez5x Scaled population (raster) 0.48 Max wave alert 0.09m  
  C1 shakemap -1.73 Max wave realtime 0.09m  
  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
1387533 0.6 26 Jul 2021 12:09 6.6M, 30km N/A 370 thousand (in 100km) 0.1m (at 00:42) 00:15 PTWC
1387535 0.6 26 Jul 2021 12:09 6.6M, 30km N/A 380 thousand (in 100km) 0.1m (at 00:42) 00:19 NTWC
1387536 0 26 Jul 2021 12:09 6.2M, 10.67km 6.32 less than 100 (in MMI>=VII) 0.1m (at 00:07) 00:29 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 Bangketa, Indonesia. This height is estimated for 26-Jul-2021 12:16:91.

Alert Date (UTC) Name Country Wave height (m)
26-Jul-2021 12:16:91 Bangketa Indonesia  0.1
26-Jul-2021 12:15:94 Bolaang Indonesia  0.1

See full locations list (RSS)


Initial conditions

Title: ""97 km WNW of Luwuk""

Fault parameters

  • Length: 19 km
  • Width: 5 km
  • Magnitude: 6.2 M

Okada parameters:

  • Slip: .6 m
  • Strike: 90 (geogr angle: north=0, south=180)
  • Dip: 45 degree
  • Rake: 90 degree
  • Depth: 11 km

Calculation parameters

  • Calculation space (lon/lat): 120.431, -2.248, 123.431, .752
  • Instead of Step -> use Cell size:.25 minutes

Sea Level

More information

  • Timeline:
    Tsunami calculations performed to this case, click here

  • Montecarlo:
    Tsunami Montecarlo simulation performed to this case, click here

For a full list of available products related to this event, please refer to the GDACS Resources page.