<![CDATA[Lebong Sakti District, located in Lebong Regency, Bengkulu Province, lies within an active tectonic setting influenced by the Sumatran Fault system and is characterized by fluvial deposits associated with the Ketahun River flowing into Lake Tes. These conditions contribute to the presence seismic events. This study evaluates liquefaction potential in Lebong Sakti District, Lebong Regency, Bengkulu using deterministic earthquake scenarios. The analysis is based on the 2017 earthquake (Mw 5.0) and additional scenarios of Mw 6.0, Mw 7.0, Mw 8.0, and Mw 9.0 to examine the sensitivity of liquefaction potential to increasing seismic energy. Liquefaction potential was evaluated using the simplified procedure through the calculation of Cyclic Stress Ratio (CSR), Cyclic Resistance Ratio (CRR), and Factor of Safety (FS), while the overall hazard level was assessed using the Liquefaction Potential Index (LPI). The results show that increasing earthquake magnitude significantly increases Peak Ground Acceleration (PGA) and CSR while reducing FS. The average LPI rises from 0.00 at Mw 5.0 to 15.67 at Mw 9.0, indicating higher liquefaction hazard levels. These findings highlight the importance of deterministic earthquake scenarios for geotechnical hazard assessment and disaster mitigation in seismic regions.]]>
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