Corrections for the Location Errors of Wenchuan Aftershocks Recorded by the Nagqu and Hotan Arrays

作     者：Hao Chunyue Zheng Zhong Zhang Shuang 

作者机构：Institute of GeophysicsCEA 

出 版 物：《Earthquake Research in China》 (中国地震研究（英文版）)

年 卷 期：2014年第28卷第3期

页      面：380-387页

学科分类：070801[理学-固体地球物理学] 07[理学] 0708[理学-地球物理学] 

基　　金：sponsored by the Basic Scientific Research Special Program of Institute of Geophysics China Earthquake Administration(DQJB08819) 

主　　题：位置精度 余震 和田 那曲 汶川 方位角估计 更正 偏差校正 

摘      要：We use the slowness-azimuth station correction( SASC) method to improve the location accuracy of the Wenchuan aftershocks recorded by the Nagqu and Hotan seismic *** results show that the standard deviations of back-azimuth and slowness errors of Wenchuan aftershocks recorded by the Nagqu array decreased by 32% and 58%respectively after correction. The decrease is 38% and 71% for the Hotan array. After the correction,the location accuracy of all Wenchuan aftershocks recorded by the Nagqu array is improved. For the Hotan array,the accuracy is improved in the slowness estimation for 78% of aftershocks and in back-azimuth estimation for all aftershocks.