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All Journal Medula Jurnal Online Mahasiswa (JOM) Bidang Pertanian Journal of Geoscience, Engineering, Environment, and Technology Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Medika Malahayati Alauddin Law Development Journal (ALDEV) Jurnal Sains Teknologi dalam Pemberdayaan Masyarakat Jurnal Kesehatan Tambusai Keizai Mestaka: Jurnal Pengabdian Kepada Masyarakat Innovative: Journal Of Social Science Research Majalah Cendekia Mengabdi Karimah Tauhid Jurnal Pengabdian Masyarakat Wadah Publikasi Cendekia JPM (Jurnal Pengabdian Masyarakat) Ruwa Jurai
Muhammad Aditya, Muhammad
Fakultas Kedokteran, Universitas Lampung
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Analysis of Earthquake Risk Zones Using the Horizontal to Vertical Spectral Ratio (HVSR) Method at Vital Objects of Radin Inten II Airport, Natar Market, and Branti Market Aditya, Muhammad; Haerudin, Nandi; Maulida, Nanda Hanyfa
Journal of Geoscience, Engineering, Environment, and Technology Vol. 11 No. 3 (2026): Articles In Press Vol 11 No 3 2026
Publisher : UIR PRESS

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Abstract

South Lampung, Indonesia, lies within the tectonically active Indo-Australian–Eurasian subduction zone, influenced by the Lampung-Panjang and Menanga Faults. Volcanic and volcaniclastic lithologies overlying thick alluvial sediments increase seismic amplification potential. This region hosts critical infrastructure including airports and markets, but seismic hazard at these sites has not been comprehensively evaluated. Therefore, this study aims to assess seismic hazard at three critical infrastructure sites: Radin Inten II Airport, Natar Market, and Branti Market. The earthquake hazard zones were analyzed using the Horizontal to Vertical Spectral Ratio (HVSR) method, which effectively estimates site resonance frequency ( ), amplification ( ), and shear-wave velocity ( ) without requiring active seismic sources or boreholes, making it ideal for rapid microzonation in urban-vital areas. Unlike previous HVSR studies in Lampung that focused on single-parameter ( ) mapping, this study integrates five parameters ( ,  ,  ,  , and  ) to produce a multi-criteria hazard classification. Microtremor data were collected from 25 measurement sites using the Seismometer Rakyat Indonesia (SRI) and processed using Geopsy, Excel, and MATLAB. These analyses yielded dominant frequency ( ) ranging from 0.6-14 Hz, amplification factor ( ) from 0.8-5.2, dominant period ( ) from 0.07-1.6 s, seismic vulnerability index ( ) from 0.06-3.9 cm/s², and shear-wave velocity up to a depth of 30 meters ( ) from 254-1433 m/s. These parameters were then spatially integrated to assess the seismic hazard level at each study site, with   and   as primary classifiers and  ,  ,   as corroborating indicators. The results showed that Radin Inten II Airport and Branti Market exhibit stable seismic characteristics with high dominant frequencies (>6 Hz), low amplification (<3), short dominant periods (<0.25 s), low  (<1 cm/s²), and high  values (>350 m/s), thus categorizing them as low-risk zones. Meanwhile, Natar Market is located within an area showing moderate dominant frequency (4-6.67 Hz) and amplification (3-6), along with a longer dominant period (0.25-0.4 s) and high  values (>350 m/s), placing it in a medium-risk zone. These findings provide a scientific basis for site-specific seismic risk mitigation at critical infrastructure in South Lampung.
Co-Authors ', Nurbaiti Abdul Latif Adiyati, Noor Ahmad Aini, Muhammad Noor Alloysius Vendhi Prasmoro, Alloysius Vendhi Alvista, Valentina Nancy Anggraini, Dian Isti Anggraini, Kirana Widya Anisa Ilyanawati, R. Yuniar Anita Sukmawati Aprianti, Shervia Dwi Arsanto, Hugeng Wimbo Artandi, Muhammad Aulia, Ajeng Hijiratul Azzahra, Melani Betta Kurniawan, Betta Bintang, Muhammad Audya Centya Cheirini Ermia SYO, Vivin Ety Apriliana Gilang Maulana, Muhammad Habibie, Ramadhani Alfin Hendra Tarigan Hendra Tarigan Sibero Idwar, Idwar Khairul Anwar Khairun Nisa Kirana, Indira Kurniawaty, Evi Luthfi Setiarno, Muhammad Makanoneng, Jacqueline Maria Kristina, Maria Muh. Akbar Fhad Syahril Muhammad Amin Muhammad Sulaiman Muryaningsih, Azizah Naibaho, Nora Nanda Hanyfa Maulida Nandi Haerudin Oktariani, Hesty Oktarina, Vivin Ermia Sarinari Yopan Oktaviany, Nadilla Pakpahan, Marisi Pratama, Ilham Okta Prima Kharismaputra, Aulia Puspitasari, Ratna Dewi Putera, Muhammad Luthfi Setiarno Rahma Dania Rahma, Cinta Alicia Ramadani, Nova Azzahra Ramadhani, Riska Rani Himayani Rasmi Zakiah Oktarlina Rasyid Ridho, Muhammad Sayyid Rifda Ilahy Rosihan Rihi Hina, Bara Jonathan Riswati, Riga Rossa, Putri Emylia Seran, Ardi Peterson Setiarno, Muhammad Luthfi Setyawan, Filippus Cahyo Shinta Nareswari, Shinta Siswoyo, Mardi Sofyan Musyabiq Wijaya Spalanzani, Widya Sri Hidayati Supratman, Jasan Tangkudung, Audrey G. Ulfah, Lendra Winda Trijayanthi Utama, Winda Trijayanthi Wiwin