1998年1月10日河北省张北-尚义M_S6.2地震震源机制的初步研究
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摘要
1998年1月10日在河北省张北—尚义地区发生Ms6．2级地震，研究本次地震的霞源机制对于研究震源区和华北地区的地震活动性、构造运动和地球动力过程都有重要意义，我们用地幔波波形拟合及P波初动符号估计了本次地震的震源机制，提供了若干条P波列宽频垂直向（BHZ）波形图，认为以逆冲为主的断裂引起本次地震．
An Ms 6.2 earthquake occrred on January 10, 1998, in Zhangbei-Shangyi region, Hebei Province. It has important significance to study focal mechanism of the earthquake for all studies of seisndcities in souree area and Huabei region, and tectonic movements and geodynamics processes. We estimared focal mechanism of the earthquak using mantle waves' waveform fitting method and P wave's first motion signs, and obtained that the earthquak formed a thrust fault. Sevetal venical component records of P wave's train on Broad Band channel(BHZ) are provided.
An Ms 6.2 earthquake occrred on January 10, 1998, in Zhangbei-Shangyi region, Hebei Province. It has important significance to study focal mechanism of the earthquake for all studies of seisndcities in souree area and Huabei region, and tectonic movements and geodynamics processes. We estimared focal mechanism of the earthquak using mantle waves' waveform fitting method and P wave's first motion signs, and obtained that the earthquak formed a thrust fault. Sevetal venical component records of P wave's train on Broad Band channel(BHZ) are provided.
引文
1马淑田,姚振兴,纪晨, 1996年3月 19日新疆伽师MS6.9地震的震源机制以及相关问题研究,地球物理学报,1997,40(6):782-790
2 Gilbert F,Masters G. Low-Freqbency Seismology. University of Califormia,San Diego, USA(博士生讲义),1989
3 Gilbert F, Dziewonski A M. An application of normal mode theory to the retrieval of structural parameters andsource mechanisms from seismic spectra.Philos,Trans.R.Soc.London,Ser,A,1975,278:187-269
4姚振兴,郑天愉,曹相如,王凯。用P波波形资料测定中强地震震源过程的方法地球物理学进展,1991,6:1-36
5纪晨.地震波传播及波形反演[硕士论文].北京:中国科学院地球物理研究所,1994.
6 Press W H, Teukolsky S A, Vetterling W T, Hannery B P Numerical Recipes in Fortran—The art ofScienhfic Computing, Second Edition.Cambridge;Cambridge University Press, 1992 387-448
7方开泰.均匀设计──数论方法在试验设计的应用应用数学学报,1980 3(4):363-372
8马淑田,用长周期面波、地幔波数字化波形记录和P波初动估计大、中、小地震的震源机制及相关问题研究[博士论文]北京:中国科学院地球物理研究所,1997
9 Aki K,Richards G.Quanitative Seismology,Theory and Methods.Vol,I.San Francisco, CA: W,H.Freeman 1980. 105-119
10 Deiewonski A M, Ekstrom G, Franzen J E, Woodhouse J H.Global seismicity of 1977; Centroid-momenttensor solutions for 471 earthpes.Phys Earth Planet Inter,1987, 45: 11-36
11马淑田,姚振兴,纪晨.1996年5月3日内蒙古包头MS6.4级地震的震源机制研究地球物理学报,1998,待发表
2 Gilbert F,Masters G. Low-Freqbency Seismology. University of Califormia,San Diego, USA(博士生讲义),1989
3 Gilbert F, Dziewonski A M. An application of normal mode theory to the retrieval of structural parameters andsource mechanisms from seismic spectra.Philos,Trans.R.Soc.London,Ser,A,1975,278:187-269
4姚振兴,郑天愉,曹相如,王凯。用P波波形资料测定中强地震震源过程的方法地球物理学进展,1991,6:1-36
5纪晨.地震波传播及波形反演[硕士论文].北京:中国科学院地球物理研究所,1994.
6 Press W H, Teukolsky S A, Vetterling W T, Hannery B P Numerical Recipes in Fortran—The art ofScienhfic Computing, Second Edition.Cambridge;Cambridge University Press, 1992 387-448
7方开泰.均匀设计──数论方法在试验设计的应用应用数学学报,1980 3(4):363-372
8马淑田,用长周期面波、地幔波数字化波形记录和P波初动估计大、中、小地震的震源机制及相关问题研究[博士论文]北京:中国科学院地球物理研究所,1997
9 Aki K,Richards G.Quanitative Seismology,Theory and Methods.Vol,I.San Francisco, CA: W,H.Freeman 1980. 105-119
10 Deiewonski A M, Ekstrom G, Franzen J E, Woodhouse J H.Global seismicity of 1977; Centroid-momenttensor solutions for 471 earthpes.Phys Earth Planet Inter,1987, 45: 11-36
11马淑田,姚振兴,纪晨.1996年5月3日内蒙古包头MS6.4级地震的震源机制研究地球物理学报,1998,待发表
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