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All Journal Jurnal Pendidikan Geografi Undiksha Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan
Nurokhim, Arif
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Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Energy Engineering Transportation

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REKONSTRUKSI DAN PEMODELAN PENJALARAN TSUNAMI MENGGUNAKAN SISTEM TOAST DENGAN METODE PEMODELAN EASYWAVE (STUDI KASUS TSUNAMI BANYUWANGI 3 JUNI 1994) Febrianty, Angeline; Ramadhanty, Aura Zahra; Nurokhim, Arif; Widodo, Amien
Jurnal Pendidikan Geografi Undiksha Vol. 12 No. 2 (2024): Jurnal Pendidikan Geografi Undiksha
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jjpg.v12i02.69204

Abstract

Banyuwangi adalah salah satu kabupaten di Provinsi Jawa Timur dengan area terluas. Daerah ini berlokasi di ujung timur Pulau Jawa dengan wilayah pesisir di bagian selatan yang sangat rawan terhadap bencana tsunami karena terdapat zona pertemuan antara lempeng tektonik Indian-Australia dan Eurasia. Dalam penelitian ini, rekonstruksi tsunami yang terjadi di Banyuwangi pada 3 Juni 1994 dilakukan dengan metode Easywave dan sistem TOAST. Hasil rekonstruksi menunjukkan bahwa nilai run up bergantung pada magnitud dan kedalaman gempa. Pulau Nusa Barung memiliki status awas dengan ketinggian run up 4,951 m, sedangkan wilayah di Jember, Jawa Timur, memiliki ketinggian run up 4,785 m.
Utilization of Tsunami Modeling in Determining Temporary Evacuation Spots on the Labuan Coast Sariwardoyo, Awanda Muthia; Arifin, Wildan Aprizal; Larasati, Wenny Ananda; Nurokhim, Arif; Sriyanto, Sesar Prabu Dwi
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 6, Number 1, March 2025 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/zl.v6i1.42265

Abstract

Indonesia is one of the countries with more water surface than land and, in addition, its territory is located between three plates: the Indo-Australian, the Eurasian and the Pacific. This makes Indonesia a country with high volcanic and seismic activity. The abundant news related to mega-earthquakes has made many Indonesians wary of these phenomena. The Sunda Strait is one of the places where megathrustings are expected to occur, and Banten, being a province located in the ocean of the Sunda Strait, makes the level of vigilance high. The modeling process related to tsunami is a representation that can visualize if a large earthquake occurs and causes a tsunami, especially in the coastal area of Labuan subdistrict. The objective of this research is to determine the temporary evacuation spots in tsunami affected areas using tsunami modeling performed with COMCOT (Cornell Multi-grid Coupled Tsunami Grid). The modeling results obtained a wave height to the shoreline of 15 meters with a period to the shoreline of 60 minutes.  Twelve temporary evacuation spots (TES) were determined in this study, 9 of the 12 spots become safe TES because the point has a higher ground level and is out of the inundation range.
PERAN HUTAN PANTAI DALAM MEREDUKSI TSUNAMI MENGGUNAKAN PEMODELAN COMCOT Arnisti, Raissa Alimah; Rosalia, Ayang Armelita; Anzani, Luthfi; Harvan, Muhammad; Nurokhim, Arif; Sriyanto, Sesar Prabu Dwi
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 6, Number 1, March 2025 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/zl.v6i1.42444

Abstract

Panimbang sub-district is one of the areas affected by the tsunami in 2018, located directly opposite the Krakatau Volcano and close to the Sunda Strait subduction zone (megathrust), making it an area with a high threat of tsunami levels. This study aims to determine the impact of coastal forests in reducing tsunamis using COMCOT modeling as one of the mitigation efforts. The tsunami generator used uses the worst scenario earthquake that can occur in the Sunda Strait subduction zone area. The results show that the coastal forest in Panimbang sub-district with a width of 380 m can reduce the tsunami velocity by 50% compared to the coastal forest with a width of 30 m. In addition, the manning coefficient (n) value also has an influence in reducing the inundation area, inundation level height, and tsunami velocity.
Co-Authors Amien Widodo Anzani, Luthfi Armelita, Ayang Arnisti, Raissa Alimah Febrianty, Angeline Harvan, Muhammad Larasati, Wenny Ananda Ramadhanty, Aura Zahra Sariwardoyo, Awanda Muthia Sriyanto, Sesar Prabu Dwi Willdan Aprizal Arifin