The coastal area of South China overlooks the Manila trench across the South China Sea.Once a tsunami triggered by the earthquake in the trench that has frequent seismic activity,the tsunami energy may spread northward to the coast of China and influence the region.Based on the focal parameters of Manila trench which is divided into six segments,COMCOT(cornell multi-grid coupled tsunami model)is adopted to simulate six potential tsunamis.The six earthquakes are close to Mw9.0,and the epicenter of them distr...