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All Journal Jurnal Geologi Kelautan: Media Hasil Penelitian Geologi Kelautan Jurnal Ilmu dan Inovasi Fisika
Azzahra, Raisya
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Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Energy Environmental Science Materials Science & Nanotechnology

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ANALISIS RISIKO MULTI BAHAYA DAN OPSI PENGELOLAAN PESISIR DI KECAMATAN CIDAUN KABUPATEN CIANJUR Azzahra, Raisya; Syamsudin, Fadli; Subiyanto, Subiyanto
JURNAL GEOLOGI KELAUTAN Vol 23, No 1 (2025)
Publisher : Pusat Penelitian dan Pengembangan Geologi Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32693/jgk.23.1.2025.923

Abstract

Kecamatan Cidaun, yang terletak di pesisir Cianjur dan berbatasan langsung dengan laut lepas Samudra Hindia, ditetapkan sebagai kawasan rawan tsunami, gelombang pasang, gerakan tanah, dan banjir. Penelitian ini bertujuan untuk mengetahui karakteristik pesisir, tingkat risiko multi bahaya pesisir, dan opsi pengelolaan pesisir yang tepat untuk pesisir Cidaun. Penelitian ini menggunakan Metode Coastal Hazard Wheels 3.0 yang dapat menganalisa risiko multi bahaya pesisir melalui 6 (enam) indikator yaitu Tata Letak Geologis (Geological Layout), Paparan Gelombang (Wave Exposure), Pasang Surut (Tidal Range), Flora/Fauna, Keseimbangan Sedimen (Sediment Balance), dan Aktivitas Iklim (Storm Climate). Hasil analisa risiko terhadap multi bahaya ini kemudian digunakan sebagai acuan dalam menentukan opsi pengelolaan pesisir yang tepat bagi wilayah Cidaun. Hasil penelitian menunjukkan 8 (delapan) Kode Klasifikasi CHW di pesisir Cidaun, yaitu PL-5, PL-7, R-1, SR-11, SR-13, SR-15, SR-9, dan TSR sehingga opsi pengelolaan pesisir yang tepat dilakukan di wilayah Pesisir Cidaun ialah Coastal Zoning, Groundwater Management, Tsunami warning system, Beach Nourishment, Dune Rehabilitation, Flood Warning System, Coastal Setback, Fluvial Sediment Management, Ecosystem Based Management.
Zonasi Kerentanan Likuifaksi Berbasis Liquefaction Potential Index (LPI) di Kecamatan Seberang Musi, Kabupaten Kepahiang Qotrunnada, Mutia; Mase, Lindung Zalbuin; Supriani, Fepy; Azzahra, Raisya; Lubis, Aminah Rahmadhani; Misliniyati, Rena; Amri, Khairul
JIIF (Jurnal Ilmu dan Inovasi Fisika) Vol 10, No 2 (2026)
Publisher : Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jiif.v10i2.70698

Abstract

This study aims to evaluate and map earthquake-induced liquefaction potential in Kandang and Temdak Villages, Seberang Musi District, Kepahiang Regency. The analysis integrates geotechnical and seismic parameters, including peak ground acceleration, shear wave velocity, earthquake intensity, and soil vulnerability index. The results indicate that the study area is dominated by high ground acceleration and strong to very strong shaking intensity, which act as the main triggering factors of liquefaction. The evaluation of subsurface conditions shows that liquefaction potential mainly occurs in shallow layers composed of loose and saturated soils, while deeper layers tend to be more stable. The liquefaction potential index values vary significantly, ranging from low to very high across different locations. The highest value reaches 76.04, indicating very high liquefaction potential, while the lowest value is approximately 4.45, indicating lower potential. These findings suggest that the thickness and dominance of vulnerable layers at shallow to intermediate depths are the main factors controlling liquefaction potential. Overall, the applied approach provides a representative assessment for identifying liquefaction-prone zones and supports earthquake risk mitigation planning in the study area.
Co-Authors fadli syamsudin Khairul Amri Lindung Zalbuin Mase, Lindung Zalbuin Lubis, Aminah Rahmadhani Misliniyati, Rena Qotrunnada, Mutia Supriani, Fepy