Tsunami Hazard Potential Modeling as Tourism Development Considerations in the North of Lombok Strait
Mardi Wibowo, Widjo Kongko, Wahyu Hendriyono, Shofia Karima
Abstract
Abstract Currently, the central government and provincial governments of Bali and West Nusa Tenggara are promoting tourism development in North Bali and North Lombok. In the development of tourism, besides consider the potential of existing tourism objects, the economy, and its supporting facilities, the potential threats of disasters must also be considered. Based on historical records, one of the potential disasters in northern Bali and Lombok is a tsunami. This study aims to determine the height and the arrival time of the tsunami along the northern coasts of Bali and Lombok. This study was carried out by simulation and numerical modeling, using the TUNAMI Model. Modeling was carried out for 2 hypothetical scenarios caused by an earthquake from the Flores Back-arc Thrust. Base on this model, it is known that the height of tsunami on Trawangan Island is ± 6 m with an arrival time of ± 3 minutes, while on the north coast of Bali the height of the tsunami is ± 0.6 m with an arrival time of ± 21 minutes. The arrival times of the tsunami on the north coast of Bali and Lombok are so fast.