Zonasi Kerentanan Likuifaksi Berbasis Liquefaction Potential Index (LPI) di Kecamatan Seberang Musi, Kabupaten Kepahiang

Mutia Qotrunnada, Lindung Zalbuin Mase, Fepy Supriani, Raisya Azzahra, Aminah Rahmadhani Lubis, Rena Misliniyati, Khairul Amri

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.


References


A. I. Hadi dkk., “Seismic microzonation of kepahiang regency, Indonesia using the HVSR method: enhancing Urban resilience to mitigate earthquake vulnerability,” Indian Geotechnical Journal, Jun 2025, doi: 10.1007/s40098-025-01299-z.

B. I. Siburian, M. Marzuki, dan A. M. Lubis, “Local site effects and seismic microzonation around Suban Area, Curup Rejang Lebong, Bengkulu deduced by ambient noise measurements,” Geoenvironmental Disasters, vol. 11, no. 1, hlm. 5, Jan 2024, doi: 10.1186/s40677-024-00268-7.

D. Didik Prayogo, “Geometry And Kinematics Of The Renun Segment Of The Sumatran Fault In North Sumatra,” International Journal of GEOMATE, vol. 28, no. 126, Feb 2025, doi: 10.21660/2025.126.4779.

L. Z. Mase, Refrizon, N. S. Pakpahan, A. Shelina, J. Wu, dan S. Chaiyaput, “Site Characteristics of Musi Fault Zone in Kepahiang Urban Area, Bengkulu Province, Indonesia,” Transportation Infrastructure Geotechnology, vol. 11, no. 4, hlm. 2453–2482, Agu 2024, doi: 10.1007/s40515-024-00375-w.

D. H. Natawidjaja, “The Sumatran Fault Zone-from Source to Hazard,” 2007.

M. Farid, L. Z. Mase, dan T. F. Fathani, “The Investigation of Subsurface Beds using Microtremor and Geo-electric Methods in A Liquefied Area in Bengkulu City After The Bengkulu-Mentawai Earthquake,” Indonesian Journal on Geoscience, vol. 11, no. 3, hlm. 377–390, Nov 2024, doi: 10.17014/ijog.11.3.377-390.

S. Y. Kang, K.-H. Kim, Y. S. Gihm, dan B. Kim, “Soil liquefaction potential assessment using ambient noise: A case study in Pohang, Korea,” Front. Earth Sci. (Lausanne)., vol. 10, Nov 2022, doi: 10.3389/feart.2022.1029996.

W. Wang dkk., “Mapping of Soil Liquefaction Associated with the 2021 Mw 7.4 Maduo (Madoi) Earthquake Based on the UAV Photogrammetry Technology,” Remote Sens. (Basel)., vol. 15, no. 4, hlm. 1032, Feb 2023, doi: 10.3390/rs15041032.

R. Misliniyati dkk., “Liquefaction Risk Assessment and Microzonation in Bengkulu Port Area After a Megathrust Earthquake,” Geotechnical and Geological Engineering, vol. 43, no. 3, hlm. 126, Mar 2025, doi: 10.1007/s10706-025-03090-6.

C. Eliesa Suhartini, L. Zalbuin Mase, dan M. Farid, “Mapping the liquefaction potential index (LPI) in Ratu Agung subdistrict, Bengkulu City, Indonesia using the shear wave velocity approach,” E3S Web of Conferences, vol. 331, hlm. 04014, Des 2021, doi: 10.1051/e3sconf/202133104014.

L. Z. Mase, W. Tanapalungkorn, P. Anussornrajkit, dan S. Likitlersuang, “Assessing liquefaction risk and hazard mapping in a high-seismic region: a case study of Bengkulu City, Indonesia,” Natural Hazards, vol. 121, no. 6, hlm. 6597–6623, Apr 2025, doi: 10.1007/s11069-024-07057-3.

S. Chanda, N. Kumar, dan D. Kushwaha, “Liquefaction Potential Index (LPI): A Parameter to Assess Liquefaction Hazard,” 2023, hlm. 103–112. doi: 10.1007/978-981-99-3955-8_7.

D. J. L. Buhay dkk., “Mapping and characterization of the liquefaction impacts of the July and October 2022 earthquakes in Northwestern Luzon, Philippines,” Eng. Geol., vol. 342, hlm. 107759, Nov 2024, doi: 10.1016/j.enggeo.2024.107759.

BSSC, “Recommended provisions for seismic regulation for new buildings and other structures: Part 1–Provisions and Part 2–Commentary (FEMA 302, 303),” Washington, DC, 2020.

I. M. Idriss dan R. W. Boulanger, “Semi-empirical procedures for evaluating liquefaction potential during earthquakes,” Soil Dynamics and Earthquake Engineering, vol. 26, no. 2–4, hlm. 115–130, Feb 2006, doi: 10.1016/j.soildyn.2004.11.023.

J. Douglas, “Ground motion prediction equations 19642023 (incomplete),” 2024. [Daring]. doi: https://doi.org/10.6084/m9.figshare.26827750

R. W. Boulanger, I. M. Idriss, dan R. W. Boulanger, “Center For Geotechnical Modeling Cpt And Spt Based Liquefaction Triggering Procedures Cpt And Spt Based Liquefaction Triggering Procedures,” 2014.

Andrus and Stokoe, “andrus_2000_liquef_resistance_from_Vs,” Journal of Geotechnical and Geoenvironmental Engineering, 2000, doi: https://doi.org/10.1061/(ASCE)1090-0241(2000)126:11(1015).

L. Z. Mase dkk., “Application of Simplified Energy Concept for Liquefaction Prediction in Bengkulu City, Indonesia,” Geotechnical and Geological Engineering, vol. 41, no. 3, hlm. 1999–2021, Mei 2023, doi: 10.1007/s10706-023-02388-7.

C. W. W. Ng, P. A. Crous, M. Zhang, dan M. Shakeel, “Static liquefaction mechanisms in loose sand fill slopes,” Comput. Geotech., vol. 141, hlm. 104525, Jan 2022, doi: 10.1016/j.compgeo.2021.104525.

M. D. Syafrizal, L. Z. Mase, W. Tanapalungkorn, Z. Gao, dan S. Likitlersuang, “Enhancing liquefaction analysis of the coastal area in Bengkulu City, Indonesia using data-driven techniques,” Bulletin of Earthquake Engineering, Jan 2026, doi: 10.1007/s10518-026-02362-7.




DOI: https://doi.org/10.24198/jiif.v10i2.70698

Refbacks

  • There are currently no refbacks.


Journal Indexed By:
Visit Statistics: