M 7 in Indonesia from 21 Jan 2021 12:23 UTC to 12:23

Hazard models

EQ parameters
Shakemap
Tsunami

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: 7.0M
Depth: 138.9 Km
Event Date: 21 Jan 2021 12:23 UTC
21 Jan 2021 20:23 Local
Exposed Population: 100000 people within 100km
Source: PTWC pt21021050
Inserted at: 21 Jan 2021 12:35 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
PTWC 0 0 0
pt21021050 Scaled population (vector) 4.43 Max wave alert 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
1354099 0 21 Jan 2021 12:23 7M, 138.9km N/A 100 thousand (in 100km) 0m (at 00:00) 00:12 PTWC
1354100 0 21 Jan 2021 12:23 7M, 139km N/A 110 thousand (in 100km) 0m (at 00:00) 00:16 NTWC
1354104 0 21 Jan 2021 12:23 7M, 95.81km 5.46 N/A (in MMI>=VII) 0m (at 00:00) 00:22 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: ""213 km SE of Pondaguitan""

Fault parameters

  • Latitude: 4.839
  • Longitude: 127.369
  • Length: 50 km
  • Width: 14 km
  • Magnitude: 7 M

Okada parameters:

  • Slip: 1.3 m
  • Strike: 146 (geogr angle: north=0, south=180)
  • Dip: 71 degree
  • Rake: 90 degree
  • Depth: 139 km

Calculation parameters

  • Calculation space (lon/lat): 122.869, .339, 131.869, 9.339
  • Instead of Step -> use Cell size:.75 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.