| 那曲、和田台阵对汶川地震序列的定位误差校正 |
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| 引用本文： | 郝春月,郑重,张爽.那曲、和田台阵对汶川地震序列的定位误差校正[J].中国地震研究,2014,28(3):380-387. |
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| 作者姓名： | 郝春月 郑重 张爽 |
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| 作者单位： | 中国地震局地球物理研究所，北京市海淀区民族大学南路5号 100081;中国地震局地球物理研究所，北京市海淀区民族大学南路5号 100081;中国地震局地球物理研究所，北京市海淀区民族大学南路5号 100081 |
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| 基金项目： | This project was sponsored by the Basic Scientific Research Special Program of Institute of Geophysics, China Earthquake Administration （DQJB08819）.
Thanks are extended to the data backup center of national digital monitoring Institute of Geophysics, CEA for offering waveform data for this study, and to Dr instruction. network from the Ping for his |
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| 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 arrays. The 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.
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| 关 键 词： | 位置精度 余震 和田 那曲 汶川 方位角估计 更正 偏差校正 |
| 收稿时间： | 7/4/2012 12:00:00 AM |
Corrections for the Location Errors of Wenchuan Aftershocks Recorded by the Nagqu and Hotan Arrays |
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| Hao Chunyue,Zheng Zhong and Zhang Shuang.Corrections for the Location Errors of Wenchuan Aftershocks Recorded by the Nagqu and Hotan Arrays[J].Earthquake Research in China,2014,28(3):380-387. |
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| Authors: | Hao Chunyue Zheng Zhong and Zhang Shuang |
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| Institution: | Institute of Geophysics, CEA, Beijing 100081, China |
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| Abstract: | 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 arrays. The 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. |
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| Keywords: | SASC Wenchuan aftershocks Seismic arrays in Western China |
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