A country with thousands kilometers coastline as Vietnam, the research and forecast for tsunami hazard were very necessary. The simulation of tsunami propagation program in shallow water, which was developed on the basis of the Green's functions, were transferred to Vietnam in scientific cooperative program between Vietnam and Italy 2006-2008 in order to simulate tsunami propagation in East Sea Vietnam. The simulation of tsunami propagation programs were applied in Vietnam before, were programs being used widely on the world. These programs, developed from Bernoulli's equation, were applied to the deep waters. According to the geological data, geophysical analysis combined with document about earthquakes and Coulomb stress field, the authors presented 16 active faults generating earthquakes in the studying area.