Abstract
The analysis of tsunami inundation is the part of tsunami threat study.In the manual of the Disaster Prevention National Agency (DPNA), the tsunami inundation can be analyzed by the Berryman Method.The method calculates the tsunami wave height reduction when inundating the land based on the surface roughness and land slope.Another method for analyzing tsunami inundation is the wave simulation by using the COMCOT Model.The model simulates the generation, propagation, and inundation of waves based on bathymetry and topography.These two models were applied in the Kuta Mandalika.The land use map, the bathymetry and the topography of Kuta Mandalika were utilized.In the COM-COT Model result, the tsunami inundation reaches 1.2 km from the Kuta Beachline and 1.9 km from the Seger Beachline.The tsunami inundation area is 4.4 km 2 or 19% of the Kuta Village area.In the Berryman Method result, the tsunami inundation reaches about 250 m from the Kuta Beachline and 180 m from the Seger Beachline.The tsunami inundation area is 0.36 km 2 or 2% of the Kuta Village area.The Berryman Method result is underestimated compare with the COM-COT Model.The Berryman Method should be applied carefully in the tsunami inundation analysis.