利用余震震源分布确定主震断层面的方法研究  

THE METHOD RESEARCH USING AFTERSHOCK EPICENTER DISTRIBUTION TO DETERMINE THE FAULT PLANE MAIN EARTHQUAKE

作　　者：王福昌[1] 万永革[1] 

机构地区：[1]防灾科技学院,河北三河065201

出　　处：《内陆地震》2007年第1期39-43,共5页Inland Earthquake

基　　金：国家自然科学基金项目(40374012);地震科学联合基金项目(A07015);国家基础研究发展规划项目(2001CB711005)联合资助

摘　　要：利用余震震源位置的空间分布,采用Newton-Raphson算法和遗传算法确定主震断层面参数的方法,对仿真数据求出了地震主断层面走向角和倾角,验证了方法的有效性。该方法可以与其他数据结合共同约束主震断层面的参数。Using the spatial distribution of aftershock epicenter position, and using the method of the Newton-Raphson and the genetic algorithm to determine the main earthquake fault plane parameters, we calculated the trendency angle and the inclination angle of earthquake main fault plane for the simulation data. And we have confirmed the method validity. This method may restrain jointly the parameters of the main earthquake fault plane combining with the other data.

关 键 词：震源分布 断层面 最小二乘解 Newton—Raphson算法 遗传算法 

分 类 号：P315.2[天文地球—地震学]