Village Level Tsunami Inundated Areas of Kanyakumari Districts is using GIS approach, Southern Tamilnadu Coast, India

The major objective of this paper to assess Tsunami inundation mapping and hazard assessment on large scale level 1: 50, 000 maping. The various datas like topographical maps, satellite images and cadastral maps are used for tsunami inundation mapping in Kanyakumari district. IRSp6 LISS IV Quick bird, Images are used for the collecting information of High Tide Lines (HTL), CRZ buffers, coastal census information and land elevation contours were integrated into 1: 8000 scale. The DEM maps evidently showed that Colachel, Manakudi and Thengampudur villages are the largest part area susceptible for tsunami inundation due to low elevation and coastal confiquration. Where as Kadiapattinam, Agastheeswaram, and Kanyakumari villages are situated in upland area.as a result it has extremely less inundation. Tsunami impacts are more damaged in low lying flat topography, creeks inlet, river mouth estuary, etc like Manakudi and Colachel. The tsunami inundation was diverse from few meters to 750 meters in inland. In coastal estuarine area water reached up to 1500m. The quantification of Tsunami inundation was controlled by coastal geological, geomorphological and bathymetric depth. The GIS analysis shoned low elevated coastal areas are more suceptable for Tsunami inundation.