This poster paper presents first the a tsunami modelling investigation using the state of the art, open source tsunami model (GeoClaw), its adaptation to investigate the impact of tsunami wave generation, propagation and inundation at the Mediterranean coast of Israel using high resolution bathymetric and topographic grid , aided by additional tsunami generation modelling tools simulating the initial stages of tsunami generation by earthquake induced tectonic plates rupture and movement or by landslide on the coastal shelf, as well as visualization tools, adapted by the first author under LINUX operating system as an integral modelling package.