We performed the tsunami simulation along the Pacific coast of El Salvador, northern Nicaragua, and the far field Pacific coast. We used the earthquake parameter on 27 August 2012 with magnitude Mw 7.3. The simulation was conducted using TUNAMI code with nonlinear shallow water theory in spherical coordinates. For near field, we selected two tide gauge stations located on the Pacific coast of El Salvador and we assumed coastal points in order to calculate the maximum wave height in the areas where the effects of the tsunami were strong. In the simulation, we used two source models of a rectangular fault plane with a slip of 2.2 m (Case 1) and a slip of 4.4 m (Case 2) from a previous study and an assumed tsunami earthquake type. The slip amounts are calculated to keep the same seismic moment with different rigidity of 30 GPa and 15 GPa. The simulation for Case 1 produced a small tsunami with a height of less than 1.5 m. The simulation for Case 2 produced a wave height of 2.8 m. The calculated tsunami inundation is small because the landward topography is higher than the actual elevation.
Keywords: 2012 El Salvador Tsunami, DART, tide gauge, source model, tsunami height