Comparison of Natural Seismic Numerical Simulation and Practical Example
Liu Hao
Liu Jiangping
Abstract：In order to resolve the long-time forward modeling instability and realize the long-time numerical simulation of natural seismic wave field,based on staggered-grid high-order difference method,the 2-D model partitioning way of M-PML is provid-ed,the value of the M-PML absorbing boundary conversion coefficient P and its influence on the absorption capacity and the in-fluence on effective signal made by truncation error are discussed,the 2D elastic wave long time numerical simulation using higher-order finite difference is realized.In addition,combining the data of the 5.5 magnitude earthquake which occurred in Hubei Badong on December 1 6,2013 and its aftershock recorded by Wuhan and Zigui Seismograph Stations,the practical sig-nificance of the forward modeling method is verified .The results can provide a basis for the research of the propagation law, imaging,phase identification and hypocentral location of natural seismic wave field.
Keywords：multiaxial perfectly matched layerstaggered-grid high-order difference methodseismograph stationearthquake
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 1783-1792 )