Identification of Priority Areas Vulnerable to Tsunamis Along the Coastal Zone of Bandar Lampung City

Abstract

The coastal area of Bandar Lampung City is at risk of tsunami disasters due to the morphological characteristics of its shoreline. Major threats such as the eruption of Anak Krakatau and megathrust earthquake activity are the primary sources of this risk. Through the first study that integrated data from various sources at the village level for Bandar Lampung. The objective of this study is to identify priority areas at the village level along the coast of Bandar Lampung City. This study employs a geospatial approach combined with quantitative analysis using percentage-based calculations. The data analyzed include InaRISK data, Probabilistic Tsunami Hazard Assessment (PTHA) data, and historical tsunami records, which were processed using GIS. The findings reveal several priority villages with the highest levels of vulnerability, including Sukaraja, Karang Maritim, Panjang Selatan, Panjang Utara, Pidada, Srengsem, Way Lunik, Keteguhan, Sukamaju, and Way Tataan. Among these ten villages, six are located along the eastern coast and four along the western coast. These findings have limited but important implications as a foundational reference for further empirical investigations into the conditions of priority coastal areas in Bandar Lampung City. Such investigations are essential to explicitly construct localized disaster mitigation strategies and supporting risk-oriented evacuation planning and spatial development.