| 稀疏台网反演区域地震偏量矩张量解的稳定性 |
| |
| 引用本文： | 郑建常,陈运泰.稀疏台网反演区域地震偏量矩张量解的稳定性[J].地震学报,2012,34(1):31-43. |
| |
| 作者姓名： | 郑建常 陈运泰 |
| |
| 作者单位： | 1) 中国北京100081中国地震局地球物理研究所 2) 中国济南 250014 山东省地震局 |
| |
| 基金项目： | 中国地震局地震行业科研专项，中国地震局监测预报司震情跟踪定向工作任务，山东省地震局重点科研项目，博士基金 |
| |
| 摘 要： | 使用区域地震台网的波形资料,研究了2010年2月26日台湾以东海域Mw5.4地震的偏量矩张量,所得结果与Havard CMT目录给出的解之间的Kagan角为9.5°,两者较为一致；反演得到这次地震的震源深度为41 km,接近USGS给出的定位结果,可能更接近真实的震源深度.选择不同的台站组合,分析了台站布局对矩张量解的...
|
| 关 键 词： | 偏量矩张量 稀疏台网 离散波数法 波形反演 |
Stability of sparse station data inversion for deviatoric moment tensor solution of regional earthquakes |
| |
| Zheng Jianchang
,
Chen Yun-tai.Stability of sparse station data inversion for deviatoric moment tensor solution of regional earthquakes[J].Acta Seismologica Sinica,2012,34(1):31-43. |
| |
| Authors: | Zheng Jianchang Chen Yun-tai |
| |
| Affiliation: | 1) Institute of Geophysics, China Earthquake Administration, Beijing 100081, China2) Earthquake Administration of Shandong Province, Jinan 250014, China |
| |
| Abstract: | Observations from regional seismic network are used in studying deviatoric moment tensor for the MW5.4 earthquake of 26 Febuary 2010 in Taiwan adjacent area.The smallest rotation angle defined by Kagan(1991) between our result and the Havard GCMT solution is 9.5°,and the focal depth we determined is 41 km,which is close to USGS location result and possibly closer to the real source.The paper also discusses the effect of station distribution on deviatoric moment tensor inversion by selecting different station combinations.The result shows that,for the data sets from three 3-component stations,the solutions are mostly accurate.The better station coverage,the less departure from real solutions.In appropriate case,the data set from two 3-components stations may result in relatively reliable solution. |
| |
| Keywords: | deviatoric moment tensor sparse network discrete wave-number method waveform inversion |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《地震学报》浏览原始摘要信息 |
|
点击此处可从《地震学报》下载全文 |
|
