One such study as outlined previously was performed for Istanbul, Turkey (Figure 1). Comprehensive tsunami simulations were based on 49 different scenarios considering not only active faults but also submarine landslide induced tsunamis by using OIC, a widely accepted, scientifically verified tsunami simulation code TUNAMI N2. The animations of the selected scenarios have been prepared by METU, The Department of Civil Engineering, Ocean Engineering Research Center using the tsunami simulation and visualization code NAMI DANCE, which has been developed for tsunami numerical modeling and simulations by Profs..Nobuo Shuto and Fumihiko Imamura in Tohoku University Japan. TUNAMI N2 determines the tsunami source characteristics from earthquake rupture characteristics. It computes all necessary parameters of tsunami behavior in shallow water and in the inundation zone allowing for a better understanding of the effect of tsunamis according to bathymetric and topographical conditions. For further information, http://yalciner.ce.metu.edu.tr/marmara/index_eng.htm