银川基准地震台记录地核界面波特征初探
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摘要
对2004-2009年银川地震台数字地震仪记录的数字观测波形资料进行震相分析,总结震中距30°-50°范围内地核界面反射波PcP、地核界面反射转换波ScP的震相特征。结果表明,在30°-50°范围内,银川地震台对于地震频发的印度尼西亚震区地核界面反射波PcP、地核界面反射转换波ScP的记录最为清晰,此结论有助于台站工作人员进行地震分析
Through the phase analysis of digital seismic data recorded in Yinchuan Seismic Station during 2004 to 2009,the phase features of reflected PcP and converted ScP on core interface are summarized in this paper.The Results indicate that,in the epicenter range of 30°-50°, the reflected PcP and the converted ScP on the core interface from Indonesia,where earthquakes occurred frequently,are most clearly.This conclusion has greatly improved the earthquake wave analytical ability of station staff.
Through the phase analysis of digital seismic data recorded in Yinchuan Seismic Station during 2004 to 2009,the phase features of reflected PcP and converted ScP on core interface are summarized in this paper.The Results indicate that,in the epicenter range of 30°-50°, the reflected PcP and the converted ScP on the core interface from Indonesia,where earthquakes occurred frequently,are most clearly.This conclusion has greatly improved the earthquake wave analytical ability of station staff.
引文
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张诚.地震分析基础[M].北京:地震出版社,1986:87-92．
孙立新,李惠智.银川地震台地震波记录特征[J].地震地磁观测与研究,1998,19(2) :30-37．
唐燕娟,寿海涛.核面发射波ScP在短周期仪器上的记录特征[J].地震地磁观测与研究,1992,13(1) :31-33．
吴文波,倪四道.用PcP波研究核幔边界起伏[C].中国地球物理学会第二十四届年会论文集,2008．
张诚.地震分析基础[M].北京:地震出版社,1986:87-92．
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