| Session Description |
A scientifically active decade has passed since the 2004 Andaman-Sumatra earthquake (Mw 9.1) and the consequent Indian Ocean tsunami. Considered to be an unprecedented disaster in its magnitude and its transoceanic reach, the devastation that followed had surprised researchers and planners alike. During the last decade much research has been done to understand the mechanisms of the 2004 earthquake, its tsunami and source zone properties of the Sumatra-Andaman subduction zone and the adjacent areas. The administrative leadership in the littoral countries has followed up these scientific initiatives by taking up hazard reduction programs. Seismological, GPS-based geodetic and tsunami studies during the last ten years have focused on earthquake source characterization, crustal deformation, tsunami potential including modeling of tsunami sources and characterization of tsunami deposits, probabilistic tsunami assessments, past occurrences of earthquakes/tsunamis, and long-term forecast of such events. The region has also witnessed technological advances such as deployment of offshore and deep ocean tsunami observation systems such as GPS buoys or bottom pressure gauges. This session provides a forum to discuss these topics that will help us understand the current status of such researches in the Indian Ocean and also assess the gaps in our knowledge.
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