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All Journal Dinamika Teknik Sipil: Majalah Ilmiah Teknik Sipil
Thema Arrisaldi
Department of Geological Engineering Faculty of Technology Mineral Universitas Pembangunan Nasional "Veteran" Yogyakarta
Civil Engineering, Building, Construction & Architecture

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Tsunami Inundation Modeling and Hazard Mapping Using GIS in Sawarna Beach, Banten Province Arrisaldi, Thema; Bima, Muhammad Amin Arya; Kanya Kirana Ramadhani Nurapita; Pratiknyo, Puji
Dinamika Teknik Sipil: Majalah Ilmiah Teknik Sipil Vol. 18/No. 1/Juli 2025
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/dts.v18i1.10617

Abstract

Tsunamis pose significant hazards to coastal areas, particularly in tectonically active regions like the southern coast of Java. This study models tsunami inundation at Sawarna Beach, Banten Province, using a quantitative spatial analysis approach. By integrating Digital Elevation Model (DEM) data from DEMNAS and land cover data from BIG, a tsunami hazard index is generated through slope analysis, surface roughness coefficients, and cost distance modeling within a GIS framework. The analysis reveals that areas with low surface roughness and gentle slopes are more prone to deep inland tsunami inundation. Vulnerability mapping under simulated tsunami heights (5m, 10m, 15m, and 30m) shows that hazard zones significantly increase with wave height, with the highest exposure at 30m reaching nearly 15 million m². The study underscores the importance of accurate topographic data for disaster mitigation planning and provides essential recommendations for local stakeholders in land use and infrastructure development. These findings serve as a valuable reference for enhancing tsunami preparedness and resilience in coastal communities.
Co-Authors Bima, Muhammad Amin Arya Kanya Kirana Ramadhani Nurapita Puji Pratiknyo