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Journal : Journal of Geoscience, Engineering, Environment, and Technology

Mapping of Tsunami Vulnerability Levels and Planning of Shelter Points and Evacuation Routes along the Palabuhanratu Coastline Zafira, Aura Putri; Sutoyo; Putra, Heriansyah; Erizal; Ramadhanis, Zainab
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 4 (2025): JGEET Vol 10 No 04 : December (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.4.24849

Abstract

The Palabuhanratu Subdistrict, located in the Sukabumi Regency, is a high-risk area for tsunami disasters owing to tectonic activity along the Indo-Australian and Eurasian Plate subduction zones. The tsunami vulnerability level in this subdistrict is further heightened by the relatively dense population in its coastal areas, which increases the potential for loss of life and material losses. Therefore, an analysis of tsunami vulnerability levels and the planning of structural mitigation measures—such as shelters and evacuation routes—are crucial to protect communities from tsunami threats. This study aims to analyse the inundation area and affected population under tsunami scenarios with wave heights of 10, 15, and 20 m; identify the coverage of the proposed tsunami shelters; and evaluate the effectiveness of evacuation routes leading to the shelters in the Palabuhanratu Subdistrict. The methods employed include scoring and weighting techniques, Model Builder tools, and Network Analyst. The results indicate that coastal villages, such as Citepus, Jayanti, and Palabuhanratu, are highly vulnerable to tsunamis. Based on inundation modelling, Palabuhanratu Village had the largest inundated area and the highest number of affected residents. Most residents of Citepus and Jayanti Villages are located more than 1,350 m from the nearest shelter, with travel times exceeding 30 min. In contrast, the majority of residents in Palabuhanratu Village can reach shelters within 20 min, although some are still categorised as being in distant and very distant zones. A total of 11 evacuation routes were designed to connect the initial evacuation points to the shelters. However, 2 of the 11 routes, from Point 5 and 6, still exceed 1.000 m in distance and require more than 20 min of travel time.
Co-Authors Abdus Shomad Agustina Nurhayati Ahmad Zainuddin Allatifa, Mumthaza Ama Farida Sari Amaral, Carmelita Maria AMELIA SETYAWATI, AMELIA Apri Winge Adindo Arien Heryansyah Arif Yusron Afifi Aryani Sairun Aswat, Amarilla Azhar Bagus Saefulloh, Bagus Bambang Widiyatmoko Bayu Eko Broto Binti Mohd Mustamil , Norizah Budiman, Michael Jayanto Chairul Baria Chairul Bariah Chairul Bariah Chusnul Arif Dahnus, Dodi Dedi Irawan dedi irawan Dina Hendiani Dina Hendiyani Dwi Hanto Eko Daryanto Elly Kusumawati Endang Syahriani Endriatmoko, Yosa Erizal Fajrinur Fajrinur Fatimah Zuhra Fausan, Ahmad Ferdiananda Chadafi, Muhammad Fuad Bahrul Ulum Galaciano, Antoninho Benjamin Marcos M.G. Do Rego Gustian Hafiz Ramadhan Samsuri Handoyo, GTPAK Hanita, Margaretha Harley Agustian Harnas, Hafid Hayanuddin Safri Hayati, PK Dewi Hendiani, Dina Herlambang, Sri Mulyanto Husna, Syifa Ul Ibadil Maula, Farij Imam Firdaus Irianto Uripan, Koen Isguna, Teguh Kornelis, Veri Kuswandi Ludi Wishnu Wardana Lukman M Yusuf Maghriza, Zachri Mahfud M Gamar Muhammad Luthfi Muhammad Nur Ichwan Muhammad Reza MULYADI Nafisah, A'isy Fiklik NASUTION, ATIKA AINI Nasya Nathalia Navrynda Putri Nelly Oktakia, MS Dela Oxaria Silviana Devi Prastiyono, Suryo Prawira, Gilang Indracakti Purwanti, Eny Wahyuning Purwanto, Moh Yanuar J Putra, Heriansyah Rahmad Khalis Rahmawati, Sara Rahmi Rahmi Rahmi Ramadhanis, Zainab Rantelino, Owen Riri Anggriani Rita Zahra Rosyadah, Rani Safri, Hayanuddin Saktioto Samad, Yusuf A Sandi, Ramona Sattya Arimurti Satyanto Krido Saptomo Sidik, Rizqi Fahma Soetikno, Lie Djaja Sofiyuddin, Hanhan A. Soleha, Siti Nur Son Ali Akbar Sri Murniyanti Sri Suryaningsum Sufritayati Suminar, Lintang Suri, Sulih Almaudi SUTOMO Syafiudin, Moh Fifik syahriani, endang Tri Putri Utami Tri Sudibyo Vicki Dwi Purnomo Warnita Widowati Yundrawan Ega Wibowo Yusuf A Samad Zafira, Aura Putri Zuhri Nurisna Zulfikar Zuriani Ritonga