Davin Ridho Alfath, Mohammad Bagus Adityawan, Mohammad Farid, Arno Adi Kuntoro, Widyaningtias, M. Gilang Indra Mardika, Dyah Kusumastuti
Kelumbayan Subdistrict is one of the tourist destinations in Lampung Province, Sumatra Island, Indonesia, that holds the beauty of the sea and beaches as an attraction for tourists. However, the location of Kelumbayan Subdistrict around the Indian Ocean subduction zone makes this area prone to tsunamis due to submarine earthquakes generated by the meeting between the Indo-Australian Plate and the Euro-Asian Plate. Referring to the case of the Aceh tsunami in 2004, the potential damage generated by a tsunami disaster from the subduction zone in the south of Sumatra is enormous, with many fatalities and massive material losses. The case study of a potential tsunami in Kelumbayan Subdistrict was further investigated to determine the maximum water level of tsunami waves and the time when the waves reach land. The tsunami wave propagation is simulated using Delft3D. Historical tsunamis were reviewed from the tsunami catalog by the Agency for Meteorology, Climatology, and Geophysics (BMKG). To investigate this further, the potential maximum magnitude earthquake caused by the confluence of two tectonic plates in the vicinity of the study site was determined based on three scenarios of fault mechanisms that cause earthquakes with reference to the 2017 Indonesia Earthquake Hazard and Source Map (PUSGEN 2017). The research was conducted to determine the potential tsunami disaster that could occur in Kelumbayan Sub-district. The result of this research is the height of the tsunami wave and the arrival time. The data can be used as part of the formulation of mitigation measures in Kelumbayan Subdistrict. © 2025 Institute of Physics Publishing. All rights reserved.
Undergraduate School of Civil Engineering, Faculty of Civil and Enviromental Engineering, Institut Teknologi Bandung, Bandung, Indonesia; Center for Water Resources Development, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Bandung, Indonesia; Undergraduate School of Water Resources Engineering and Management, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Bandung, Indonesia; Center for Coastal and Marine Development, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Indonesia; Center for Civil Engineering, Faculty of Infrastructure Technology and Regional Development, Institut Teknologi Sumatera, South Lampung, Indonesia; Structural Engineering Research Group, Faculty of Civil and Environmental Engineering, Institut Teknologi Bandung, Indonesia