Tsunami Hazard Area Zonation Using Run-Up Modeling in The Coastal Area of Bandar Lampung City

Abstract Located on Indonesia’s coast, Bandar Lampung is a city whose activity centers are particularly vulnerable to tsunamis. This research evaluates the city’s tsunami risk zones by examining potential wave heights along its coastline. The study utilizes Geographic Information Systems (GIS) technology and a quantitative methodology to create detailed maps showing both tsunami hazard areas and their potential effects on different types of land use. Through a combination of HLOSS operations (which analyze wave height reduction) and Cost Distance calculations (which predict wave movement patterns), researchers developed a comprehensive tsunami hazard index map. The study produced several signiUicant Uindings about Bandar Lampung’s tsunami vulnerability. The analysis revealed that the city faces considerable tsunami risks, with over one-third (37.19%) of its coastal region falling within identiUied hazard zones. The research also identiUied speciUic areas at highest risk, including densely populated urban neighborhoods, industrial facilities, business districts, and areas covered by shrubland. Given these substantial risks, the study emphasizes the urgent need for implementing effective preventive measures and developing comprehensive mitigation strategies to protect the city against potential tsunami events.