Tsunami Hazard Zone and Multiple Scenarios of Tsunami Evacuation Route at Jetis Beach, Cilacap Regency, Indonesia

Fx Anjar Tri Laksono, Asmoro Widagdo, Maulana Rizki Aditama, Muhammad Rifky Fauzan and János Kovács
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Fx Anjar Tri Laksono: Department of Geology and Meteorology, Institute of Geography and Earth Sciences, Faculty of Sciences, University of Pécs, Ifjúság u. 6, 7624 Pécs, Hungary
Asmoro Widagdo: Department of Geological Engineering, Faculty of Engineering, Jenderal Soedirman University, Mayjen Sungkono Rd. KM 5, Purbalingga 53371, Indonesia
Maulana Rizki Aditama: Department of Geological Engineering, Faculty of Engineering, Jenderal Soedirman University, Mayjen Sungkono Rd. KM 5, Purbalingga 53371, Indonesia
Muhammad Rifky Fauzan: Department of Geological Engineering, Faculty of Engineering, Jenderal Soedirman University, Mayjen Sungkono Rd. KM 5, Purbalingga 53371, Indonesia
János Kovács: Department of Geology and Meteorology, Institute of Geography and Earth Sciences, Faculty of Sciences, University of Pécs, Ifjúság u. 6, 7624 Pécs, Hungary

Sustainability, 2022, vol. 14, issue 5, 1-19

Abstract: The 2006 tsunami, throughout the Pangandaran to Cilacap Coast, resulted in 802 deaths and 1623 houses being destroyed. At Jetis beach, Cilacap Regency, 12 people died, and hundreds of houses were damaged. This area is a tourism destination, visited by hundreds of people per week. Therefore, this study aims to determine a tsunami hazard zone and the most effective evacuation route based on multiple factors and scenarios. The method of this study includes scoring, weighting, and overlaying the distance of the Jetis beach from the shoreline and the river, including the elevation and topography. The study results depict five levels of tsunami hazard zone at the Jetis beach: an area of high potential impact, moderately high, moderate, moderately low, and low. The southern Jetis beach is the most vulnerable area with regard to tsunamis, characterized by low elevation, proximity to the beach and rivers, and gentle slopes. The simulation results show the four fastest evacuation routes with the distance from the high-risk zone to the safe zone of around 683–1683 m. This study infers that the southern part of the Jetis beach, in the moderate to high impact zone, needs greater attention as it would suffer worst impact from a tsunami.

Keywords: scoring; overlay; evacuation route; tsunami; Jetis; Cilacap; Indonesia (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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