We performed tsunami simulations for the tsunami hazard assessment along the coastline of Myanmar. We considered four scenario earthquakes along the Burma (Myanmar) subduction zone, eastern margin of the Indian Plate, with the same depth range of the fault and different locations. Dip angles are determined based on the high-resolution hypocenter distributions along the Burma (Myanmar) subduction zone. We used 8 tide gauge stations and 42 assumed stations along the Bangladesh and Myanmar coasts as output points. To examine the maximum heights and travel times of tsunami at all output points, we performed numerical simulations by using TUNAMI-N2 with GEBCO 1 arc-minute grid size bathymetry data.
The case A source is located on the subduction interface on land and near the Bangladesh coast and the maximum tsunami heights generated by this source are less than 1.0 m in the Bangladesh coast and are less than 0.1 m in the Myanmar coast. The case B source is also mainly located on the subduction interface on land. The maximum tsunami heights of the case B are less than 1.0 m in the Bangladesh coast and are less than 0.5 m in the Myanmar coast. The case C source is located on subduction interface beneath the sea, located in the Rakhine coast, western part of Myanmar. For this case, the maximum tsunami height of 3.261 m is calculated at TG23 station, located in the Rakhine coast, and the height is less than 2.0 m along the Ayeyarwady delta region. The case D source is located in the Andaman trench near the Ayeyarwady delta region. The maximum tsunami heights of the case D are less than 1.0 m along the Ayeyarwady delta region. The case D source cannot generate a great tsunami because the fault system is almost strike-slip fault.