The problem of tsunami hazard assessment and water pollution appear during the last years in connection with the increased density of infrastructure and industrial facilities on the Black Sea coast. The paper deals with the main results of the tsunami vulnerability modelling in accordance with the internationally recognised methods and new data obtained during the last years. Data collection, new approaches for travel times and dynamic properties of the giant sea waves have been investigated in the previous research. Now the main tsunamigenic sources together with the most vulnerable areas are outlined on the Bulgarian part of the coast. Together with the tsunami energy distribution according to the new method of ray tracing and refraction, the results give the possibility to establish the concentration-dissipation areas, which are most important to the tsunami risk assessment.