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All Journal Indonesian Physical Review Jurnal Nasional Pengelolaan Energi MigasZoom COMMUNITY : Jurnal Pengabdian Kepada Masyarakat Inovasi Fisika Indonesia (IFI) Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Journal of Dedication in Community (JoDiC)
Realita, Arie
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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ANALYSIS OF SOIL DYNAMICS AND GROUND MOVEMENT VULNERABILITY USING THE HVSR METHOD BASED ON MICROTREMOR MEASUREMENTS IN THE SEMPU AREA, PASURUAN Ramadhan, Yuansyah Dhaniar; Situmeang, Adedio Daniel; Saputra, M. Rizky; Cholisatin, Safira Nur; Asyfiya, Divana Zumrotul; Safrian, Alif Haidar; Fahmi, Muhammad Nurul; Madlazim, Madlazim; Realita, Arie
Indonesian Physical Review Vol. 9 No. 1 (2026)
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ipr.v9i1.561

Abstract

The Sempu Area, located in Cowek Village, Purwodadi Subdistrict, Pasuruan Regency, has a high potential for ground movement due to its lithological conditions, which consist of loose volcanic deposits and weathered sedimentary rocks, thereby increasing the risk of seismic wave amplification. This study aims to analyze the dynamics and soil vulnerability to ground movement phenomena using the Horizontal-to-Vertical Spectral Ratio (HVSR) method based on microtremor data. Data collection was conducted at 15 measurement points using a three-component seismograph, with a recording duration of 20 minutes per point. The data were analyzed using SeismoWin for signal filtering, Geopsy for extracting the fundamental frequency (f₀) and amplification values, and Surfer and ArcGIS for spatial visualization in the form of dominant frequency maps, amplification maps, and soil vulnerability index (Kg) distribution. The results showed that the dominant frequency values ranged from 2.75 to 5.92 Hz, with a maximum amplification value of 6.18. The most vulnerable zones were identified in the central part of the hamlet, specifically at points 10 and 14, which exhibited the highest Kg value of 14.12. These findings indicate the presence of significant local resonance zones arising from unconsolidated lithology, thereby increasing the risk of damage from seismic shaking. The implications of this study support land-use planning based on seismic microzonation and the development of more precise disaster mitigation strategies in areas prone to ground movement.
Co-Authors arianto, Fadia shifa Asyfiya, Divana Zumrotul Choirunnisa, Kayla Cholisatin, Safira Nur Dewi, Karlita Diah Hari Kusumawati Fahmi, Muhammad Nurul Faridatussafura, Nurzaka Habibulloh, Muhammad Huda, Naufal Mumtas Indrawati, Yuni Khansa Hanifa, Nabila Madlazim Madlazim Madlazim Melani, Putri Mita Anggaryani Ni Made Aprillia Sekar Manggartika Novalianto, Muhammad Ramdhani Novianti, Eni Nugrahani Primary Putri Nurdin Nurdin Pramesti, Novia Prianbikasatiarsa, Nichou Putri, Rasamala I.W Ramadhan, Yuansyah Dhaniar Ramadhany, Ekik Setyo Amalia Safrian, Alif Haidar Salsabila, Aisyah Saputra, M. Rizky Situmeang, Adedio Daniel Suaebah, Evi Sya'roni, Imam Tika, Ni Made Aprillia Sekar Manggar Tjipto Prastowo Wisnawa, Gede Gangga