| 华北强震断层面解和震源深度特征 |
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| 引用本文： | 汪素云 Ni,J.华北强震断层面解和震源深度特征[J].地球物理学报,1991,34(1):42-54. |
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| 作者姓名： | 汪素云 Ni J |
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| 作者单位： | 1. 国家地震局地球物理研究所, 北京 100081;
2. 美国新墨西哥州立大学物理系;
3. 国家地震局地质研究所, 北京 100029;
4. 国家地震局分析预报中心, 北京 100036;
5. 美国哥伦比亚大学拉蒙特地质观象台 |
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| 摘 要： | 本文利用远震P波及SH波和区域地震P_(nl)波波形反演方法,测定了华北9次强震的断层面解、震源深度及地震矩.结合其他作者测定的7次地震的结果,分析了华北16次强震断层面解及华北地震震源深度特征.结果表明,华北多数强震为走滑型地震,也有个别正断层型及逆断层型地震;16次地震多数发生在地壳中部10-25km深度范围内.
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| 关 键 词： | 波形反演 断层面解 震源深度 |
| 收稿时间： | 1989-06-19 |
THE CHARACTERISTICS OF FAULT PLANE SOLUTIONS AND FOCAL DEPTHS OF STRONG EARTHQUAKES IN NORTH CHINA |
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| WANG SU-YUN JAMES NI MA ZONG-JIN ZHANG YING-ZHEN LEONARDO SEEBER JOHN G. ARMBRUSTER ZHANG LI-REN.THE CHARACTERISTICS OF FAULT PLANE SOLUTIONS AND FOCAL DEPTHS OF STRONG EARTHQUAKES IN NORTH CHINA[J].Chinese Journal of Geophysics,1991,34(1):42-54. |
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| Authors: | WANG SU-YUN JAMES NI MA ZONG-JIN ZHANG YING-ZHEN LEONARDO SEEBER JOHN G ARMBRUSTER ZHANG LI-REN |
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| Affiliation: | 1. Institute of Geophysics, State Seismological Bureau, Beijing 100081;
2. Department of Physics, New Mexico State University, USA;
3. Institute of Geology, State Seismological Bureau, Beijing 100029;
4. Center for Analysis and Prodictian, State Seismological Bureau. Beijing 100036;
5. Lamont-Doherty Geological Observatory of Columbia University, USA |
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| Abstract: | The source parameters of 9 strong events in the North China region have been determined with a joint moment tensor inversion of teleseismic and regional distance body waves (P, SH, Pnl). Combined with the results of 7 events, which were obtained by other authors, the characteristics of fault plane solutions and focal depths of 16 strong earthquakes in North China have been analysed. The results are as follows: Most focal mechanisms for these events are predominant strike slip movement, both normal and reverse faulting occurred as well. The-focal depths for 16 events are in the midcrust about 10-25 km. |
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| Keywords: | Waveform inversion Fault plane solution Focal depth |
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