RISK ANALYSIS FOR TSUNAMI GENERATION CAUSED BY SEABED MOVEMENT

• Main Author: Jevon Valerian, Hieronimus
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/79735
• Institution: Institut Teknologi Bandung

The impact of a tsunami phenomenon can cause major damage and take quite a few lives. Experts continue to develop models that can accurately simulate tsunami waves. Therefore, this research focuses on analytical and numerical modeling to simulate waves generated by seabed movements. The analytical model is solved using the Laplace–Fourier transform. The numerical model using a two-layer model with a non-hydrostatic scheme will be solved using the finite volume method on a half grid. Hammack's experiment was used to see the accuracy of the two models. After the validation stage, the research continued by analyzing the level of vulnerability in a coastal area using CVI. One of the factors that plays a role in calculating CVI is wave height. A new seabed profile is defined to simulate wave movements due to seafloor movement. An area of mangrove trees was installed in the coastal area to see the impact on reducing tsunami waves. With this simulation, numerical and analytical schemes can describe the tsunami wave profile well. Installing mangrove trees in coastal areas has also proven to be efficient in reducing the risk level of tsunamis in coastal areas.