Abstract
A probabilistic fault displacement hazard analysis (PFDHA) is a methodology that assesses the annual rate/probability of exceedance that an amount of displacement of a surface earthquake fault exceeds a certain quantity. In Japan, Takao et al. (2013) and Takao et al. (2014) basically proposed evaluation formulae for PFDHA based on investigation results related to earthquake faults that had occurred in Japan, model experiment results and numerical simulation results, but some of the coefficients followed Youngs et al. (2003). In this paper, some probability density function parameters for the distributed fault were revised on the basis of the maximum likelihood estimation method.