To investigate the tsunami hazard along the northern coast of Egypt, we performed numerical simulations of tsunamis generated by tsunamigenic earthquakes in the Eastern Mediterranean region using TUNAMI-N2 (Tohoku University’s Numerical Analysis Model for Investigation of Near-field tsunamis) code. We considered different resolution of gridded bathymetry ( GEBCO 1 arc-min and the latest updated version of 2014 30 arc-sec). We investigated a set of various scenarios (historical, credible and the worst near-field case). We presented the result of five scenario earthquakes with magnitude 7.8 to 8.6. We referred the earthquake fault parameters from two different previous studies. We assumed six virtual forecast points as output points along the Egyptian coast to calculate the tsunami waveforms. We investigated the worst case tsunami scenario toward the northern coast of Egypt, especially the Nile delta region to examine the tsunami travel time and maximum tsunami height. The results indicated that the first tsunami wave arrived at the Egyptian coastline about one hour after the occurrence of the earthquake. The maximum tsunami heights for the worst case scenario (Mw 8.6) of the 142 earthquake were about 5.7 m and 4.8 m at Alexandria city using the 30 arc-second and 1 arc-minute bathymetry data, respectively.
Keywords: Numerical tsunami simulation, Tsunamigenic earthquake, Eastern Mediterranean, Maximum tsunami height