Liquefaction Analysis Based on Liquefaction Potential Index Method in Prambanan Temple Complex of Jogjakarta

A high potential for soil liquefaction was identified at depths of 4.5 meters and above during earthquakes, particularly under certain groundwater levels (GWL) at the Prambanan Temple Complex in Jogjakarta, Indonesia. This finding is critical due to the region's significant seismic activity and sandy soil composition, which is prone to liquefaction when subjected to ground shaking. The study utilized the Liquefaction Potential Index (LPI) method, incorporating earthquake data from 2004 to 2019 and Standard Penetration Test (SPT) results. Peak Ground Acceleration (PGA) was calculated using multiple methods, with the highest value of 0.102 recorded on May 26, 2006. The analysis revealed that liquefaction risk increases with rising groundwater levels, emphasizing the need for mitigation strategies to protect this UNESCO World Heritage Site.

Fitriyana, L., & Afandi, B. P. (2020). Liquefaction Analysis Based on Liquefaction Potential Index Method in Prambanan Temple Complex of Jogjakarta. Journal of Advanced Civil and Environmental Engineering, 3(2), 66. https://doi.org/10.30659/jacee.3.2.66-72