Abstract:The probabilistic hazard analysis of potential earthquake-induced landslides integrates probabilistic seismic hazard analysis with the Newmark displacement model,using the probability of slope failure as the hazard index to produce zoning maps of landslide susceptibility. This study assesses the Namche Barwa region by incorporating engineering geological lithology and topographic elevation data,along with seismic ground motion parameters from China's fifth-generation seismic zoning map. The analysis estimates the probability of landslide occurrence under a 10% probability of exceedance over a 50-year period. Based on the results,the region is categorized into low-hazard zones ( P (f) ≤0.2),moderate-hazard zones (0.2< P (f) ≤0.3),and high-hazard zones (0.3< P (f) ≤0.4) . Moderate and high-hazard areas are primarily concentrated near Namche Barwa Peak and along steep valley slopes adjacent to major rivers,including the Yarlung Zangbo,Parlung Zangbo,Zepu Qu,and Jinzhu Zangbo rivers. These findings provide a scientific basis for regional seismic landslide risk mitigation,emergency preparedness planning,and the safety assessment of major infrastructure projects in the area.