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Geoslicer section and geoslicer peel sample
Tsunami word has been known since decades in Japanese literature (tsunami – the harbour wave). It is well established from various studies that such giant waves are generated by sudden disturbance of sea water column particularly by large magnitude subduction or seafloor earthquakes, submarine landslides, underwater volcanic eruption etc. Out of these causes mentioned above, the earthquake-induced tsunami has widespread affects. The most recent giant tsunamis were generated by 2004 Sumatra Andaman (Mw 9.3) and 2011 Tohuku (Mw 9.1) earthquakes. The region of Andaman and Nicobar Island (A&N) has a great potential to trigger mega-earthquakes similar to one experienced during 2004. These mega-earthquakes not only generate tsunamis, but also results into land-level change in the coastal areas (Figure 1 A & B). Till date a very little is known about the past earthquakes and associated tsunamis those occurred during recent historic past in A&N region. This major project has been sanctioned to undertake Earthquake & Tsunami studies in A&N Islands as a part of XII- five year plan (2012 -2017) emphasized on R & D in Tsunami & Tectonic related studies in the Indian Ocean Region.