Abstract
West Palu District is one of the areas severely affected by the earthquake that occurred on September 28, 2018. The purpose of this study was to assess the level of multi-hazard disasters in the West Palu District. The study was conducted by assessing each disaster hazard, namely the hazard of earthquakes, tsunamis, and liquefaction presented in a multi-hazard map. The earthquake hazard assessment parameter is based on PGA data. The tsunami hazard parameter is based on data from the highest peak of a tsunami wave that has ever occurred. Meanwhile, the liquefaction hazard parameter is based on the ground shear strain (GSS) value. Then the weighting and overlapping methods are carried out to obtain the final result in a multi-hazard assessment map. The results showed that the level of multi-hazard in West Palu District was in the medium and high class. The middle multi-hazard level is in Baru Village, Kamonji Village, and Siranindi Village. In contrast, the high multi-hazard level is in Balaroa Village, Ujuna Village, and Lere Village.
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