Simulation-based PSHA for the Kathmandu Basin in Nepal

Abstract

Reliable probabilistic seismic hazard analysis (PSHA) for Nepal is a long-term goal that different researchers have been working on in the last decade. Especially after the 2015 Gorkha earthquake, several classical probabilistic seismic hazard analysis studies have been carried out for the entire Nepal. Herein, an alternative simulation-based PSHA is performed for the Kathmandu basin generating a stochastic catalogue of events using information about seismogenic zones from recent research studies. Different ground motion prediction equations have been adopted. Results show the necessity for a ground motion prediction model that is tailored for Nepal.