Liquefaction severity assessment for the Anutapura Medical Center Area of Palu-Indonesia

Abstract

Abstract A liquefaction hazard assessment for a particular location is important to reduce disasters that may occur in the future. The liquefaction severity assessment for the Anutapura Medical Centre region of Palu-Indonesia was carried out on various pairs between peak ground surface acceleration and earthquake magnitude. It was conducted by first determining the factor of safety for each existing soil layer and applying the formulation prepared by Iwasaki to measure Liquefaction Potential for the entire soil column. The possible severity of liquefaction at these locations was compared based on the limits set by the respective theories of Iwasaki and Papathanassiou. The results showed that the Anutapura Medical Centre location was very susceptible to liquefaction events with a very high potential level of ground surface damage based on the Iwasaki boundary line. The above-mentioned severity by Papathanassiou limits ranges from high to very high.