GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

M 6.6 in Indonesia on 21 Apr 2012 01:16 UTC
Tsunami calculation for earthquake Earthquake in Indonesia

The JRC has developed a global tsunami wave height calculation model, which is run after each earthquake issued by seismological institutes around the world.

This report is for earthquake episode 116355 of event 116343 issued at 21 Apr 2012 01:16 (GDACS Event ID 116343, Latest episode ID: 116355, inserted at 21 Apr 2012 04:40 UTC ).


Current impact estimate:

  • The maximum Tsunami wave height is  0.1m in Oransbari, Indonesia. This height is estimated for 21-Apr-2012 01:38:27.
  • Earthquake Magnitude: 6.6M
  • Depth: 16 Km
  • Event Date: 21 Apr 2012 01:16 UTC
  • Exposed Population: 188210 people within 100km
A pre-calculated grid scenario is also available here
Population density map


Tsunami maximum wave height
Tsunami maximum wave height (Source: JRC)

See animation

Affected locations

Date Name Country Tsunami wave height (m)
21-Apr-2012 01:38:27 Oransbari Indonesia  0.1m
21-Apr-2012 01:36:34 Wanmori Indonesia  0.1m
21-Apr-2012 01:29:25 Jali_Ali Indonesia  0.1m
21-Apr-2012 01:43:94 Warbiadi Indonesia  0.1m
21-Apr-2012 01:58:34 Sjare Indonesia  0.1m
21-Apr-2012 01:37:88 Sisember Indonesia  0.1m
21-Apr-2012 02:24:46 Robookisbia Indonesia  0.1m
21-Apr-2012 01:54:22 Ambuar Indonesia  0.1m
21-Apr-2012 02:24:46 Aikarbu Indonesia  0.1m
21-Apr-2012 01:40:23 Marboei Indonesia  0.1m
21-Apr-2012 01:34:53 Roswar Indonesia  0.1m
21-Apr-2012 02:19:48 Mammeh Indonesia  0.1m
21-Apr-2012 01:38:27 Jomber Indonesia  0.1m
21-Apr-2012 01:35:91 Momi Indonesia  0.0m
Locations affected by Tsunami wave (15 of 22)

See full locations list (RSS)

Initial conditions (+)

More information

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

Official tsunami bulletins by regional warning centers can be found at the International Tsunami Information Center.