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Journal : Hexagon

SIMULASI PENJALARAN GELOMBANG TSUNAMI DI PESISIR SELATAN LUNYUK KABUPATEN SUMBAWA Mawardin, Adi; Pradjoko, Eko; Suroso, Agus
Hexagon Jurnal Teknik dan Sains Vol 5 No 2 (2024): HEXAGON - Edisi 10
Publisher : Fakultas Teknologi Lingkungan dan Mineral - Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/hexagon.v5i2.4499

Abstract

An earthquake accompanied by a tsunami disaster occurred along the southern coast of Sumbawa, Lombok, and Bali on August 19, 1977. The potential for future earthquakes and tsunamis in the region warrants significant attention. This study aims to determine the tsunami wave travel time, wave height, tsunami run-up, and inundation distance. The research was conducted at Lunyuk Beach in Sumbawa, specifically at Teluk Lampui. The methodology involved in-depth interviews with survivors of the 1977 Sumba earthquake and tsunami, as well as field measurements. Research data included earthquake fault parameters, bathymetric maps, and coastal slopes. Tsunami propagation simulations were performed using COMCOT V1.6 software. The simulation results were validated against field observation data. Based on interviews and field measurements, it was found that the tsunami run-up height reached the roofs of houses, estimated at 6.30 meters based on similar house heights during the event. The simulation analysis of layer 01, using earthquake fault data, indicated that the tsunami reached the Lunyuk coast after 15 minutes. Layer 02 analysis aimed to determine tsunami run-up heights with wave scenarios of 7 meters, 8 meters, and 9 meters, resulting in run-up depths of 6.85 meters, 7.48 meters, and 7.92 meters respectively. The corresponding wave heights were measured at 14.38 meters, 16.35 meters, and 17.70 meters. The tsunami inundation distances for each scenario were 1,513 meters, 1,528 meters, and 1,532 meters respectively. This demonstrates that higher tsunami waves lead to greater run-up heights and longer inundation distances on land. Validation results showed that a 7-meter wave height closely matched the conditions during the 1977 Sumba earthquake tsunami event.
Co-Authors Abdul Charis, Abdul Abdullah, Wildan Rosyad Adha, Muhammad Fajar Adiba, Soraya Tsamara Adiyanta, Santa Aji, Eko Usman Akbar, Tabrani al-imam, ahmad fikry Alfarido, Lalu Gilang Ramadan Andari Putri, Ni Putu Ayu Satya Annisa, Dian Anugrah Putra, Tommy Apriani, Ayu Mina Apriani, Pinka Izmy Ariza, Franrizka ary yunanto Ascaryan Rafinda Aslam, Firar Bismi Assahbani, Muhammad Syahid Agil Azmi, Muhammad Khoirul Bagas Gumintang BAMBANG SUNARKO Banani, Ade BERLIANSYAH, REZHA ARLANDA Budianto, M Bagus Budianto, Muh Bagus Desi Widiyanti Eko Pradjoko Eko Satria Endang Siti Astuti Eniarti, Miko Enny Dwi Cahyani Ery setiawan Estyana, Ema Faizal Fakhri, Faizal Faturokhman, Agus Febriana, Baiq Filda Khoirun Nikmah Ghaisani, Salsa Fajrina Giarta, Fanta Wahyu Hadiyanti, Utami Hairrudin Hamidah Nayati Utami Hanesfa, Hafiz Rahman Hanifah, Lilik Hartana, Hartana Haryanto, Vian Marantha Hasim, Yanuar Hasyim Heri Sulistiyono, Heri Hidayati, Nufalia Hidayatullah, Wahyu Hindami, Ghazi Ghossan Humairoh Saidah Husnul Hotimah, Husnul I Dewa Gede Jaya Negara I Wayan Yasa, I Wayan I Wayan, Yasa Icuk Rangga Bawono, Icuk Rangga Ihsan Ihsan Ihsan, Muhammad Hendrik Lazwardi Ikah N. P. Permanasari Indra Pardede Irwan, Moh. Jaya Negara, I Dewa Gede Julio, Ryan Bagus Julyanti, Ketut Karyawan, I Dewa Made Alit Kautzar, Al Kesuma, Weni Ayu Puja Kurniadhi, Widjojo Kusumastuti, Dhania Laksana, Priyogi Karta Laoli, Alnis Gustin Latif, Fatmawati Lestari, Riskia Dwi Mahendra, Made Maisarah, Sausan Nuhaa Maulana, Adrian Mawardi Amin Mawardin, Adi Melasari, Cita Merdana, I Nyoman Muhaemin, Aris Mustika, Suryapati Rizky Noviardini, Siriyah Nindry Nunung Widyaningsih Nur Choirul Afif Nurmala, Intan Nurrizky, Febrian Eka Pohan, Azrul Sulaiman Karim PRACOYO, ATAS Pratama, Enif Asfarianto Purwaningtyas, Putri Purwaningtyas, Putri Putra, I B. Giri Rabiatul Adawiyah, Wiwiek Rafinda, Ascariena Rahma, Siti Maylitha Ratno Purnomo Reni Cahayanti, Sherafina Rofi Henindia Rohani Rohani Rohani Rohmayani, Hairun Nisak Salehudin, Salehudin Salim, M. Agus Salsabila, Fera Fitri Santoso, Imam Sugeng Sarah Dien Hawa SARI, ANA NOVITA Satriawati, Yani Sebayang, Ika Sari Damayanthi Seno, Prihadmadi Anggoro Setyanto, Refius Pradipta Setyanto, Refius Pradiptya Sofyani, Wiwik Amalia Sri Martini Sudarto Sudarto Sudiro, Dedy Aditya Sugiarto S Sukaryadi, Eka Kurnia Arief Sulasih Sulasih Suliyanto . Supardi Supardi Suparjo SUPRIYADI, ANID suryani, Bunga Tampang, Tampang Tobing, Pahala R Tri Yuwono, Tri Tsarwan, Oties Weni Novandari Widiyani, Agustina Wildan Yudhanto Windriani, Ni Nengah Dira WIRADARMA, LALU WIRAHMAN WIRADHARMA, LALU WIRAHMAN Yi, Feng Yuniarso, Gema Puja Yusron Saadi Zainal Arifin Zulkifli, Febrian ]Suroso, Agus