M 6.6 in Indonesia from 21 Apr 2012 01:16 UTC to 01:16

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: 6.6M
Depth: 29.8 Km
Event Date: 21 Apr 2012 01:16 UTC
21 Apr 2012 10:16 Local
Exposed Population:
193475 people within 100km
Source: NEIC usc00098nl
Inserted at: 21 Apr 2012 01:35 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NEIC 0.7 1 0.5
usc00098nl Scaled population (vector) n.a Max wave scenario 0m  
  C1 earthquake n.a Max wave realtime 0.04m  
  C2 earthquake n.a      
  Country Vulnerability n.a      
  INFORM_normalised n.a      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
116343 0.5 21 Apr 2012 01:16 6.9M, 33km N/A 50 thousand (in 100km) 0.1m (at 01:51) 00:11 NEIC
116344 0.5 21 Apr 2012 01:16 6.6M, 29.8km N/A 190 thousand (in 100km) 0m (at 01:05) 00:18 NEIC
116355 0.5 21 Apr 2012 01:16 6.6M, 16km N/A 190 thousand (in 100km) 0.1m (at 00:22) 03:23 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  0.0m in Mammeh, Indonesia. This height is estimated for 21-Apr-2012 02:21:41.

Alert Date (UTC) Name Country Wave height (m)
21-Apr-2012 02:21:41 Mammeh Indonesia  0.0
21-Apr-2012 02:21:41 Aikarbu Indonesia  0.0
21-Apr-2012 02:19:48 Robookisbia Indonesia  0.0
21-Apr-2012 02:22:84 Sisember Indonesia  0.0

See full locations list (RSS)


Initial conditions

Title: "eqid"

Fault parameters

  • Latitude: -1.609
  • Longitude: 134.232
  • Length: 31 km
  • Width: 8 km
  • Magnitude: 6.6 M

Okada parameters:

  • Slip: .9 m
  • Strike: 99 (geogr angle: north=0, south=180)
  • Dip: 10 degree
  • Rake: 90 degree
  • Depth: 30 km

Calculation parameters

  • Calculation space (lon/lat): 132.732, -3.109, 135.732, -.109
  • 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.