Stochastic Simulation of Ground Motions Generated by Vrancea Intermediate-Depth Seismic Source

Abstract

Digital Object Identifier 10.32754/JMT.2018.2.05 27 Abstract—The current paper is concerned with the ground motion simulation using the stochastic method, a method that combines the parameters of the amplitude spectrum of the seismic motion with a random phase spectrum modified so that the movement would be distributed over the specific duration to the magnitude and distance of the earthquake. Using simple functions, this method incorporates the influence of seismic motion characteristic (source mechanism, seismic wave path influence and local site conditions). To see how the method can be used for Vrancea (Romania) intermediate-depth source, SMSIM and EXSIM were used to simulate the medium earthquake produced by Vrancea source on October 27, 2004.