呼和浩特基准地震台S波分裂研究

摘要

选取呼和浩特基准地震台2008—2015年产出的全球MS 6.0以上远震地震事件资料，使用Splitlab软件，对远震震相（SKS、SKKS、SS）综合分析，运用旋转相关法和最小能量法，进行S波分裂研究。在计算过程中，使用图形特征和结果对比的方法，对计算结果的质量进行判定，最终得到快波偏振方向主要集中在-12°—6°，延迟时间主要集中在0.9 s左右，与其他文献研究结果吻合。通过本次单台S波分裂研究，为今后更大范围的S波分裂研究提供了有效方法，也为今后单台测震学科研究工作提出新的思路。%In this paper,using rotational correlation and minimum energy methods provided in Splitlab software package,a comprehensive S wave splitting study of teleseismic phase (SKS,SKKS, SS) data selected from global MS 6.0 event waveform record by Hohhot Reference Seismic Station during 2008—2015. In the calculation process,the quality of calculating results is evaluated by use of graphical features and comparison method. The ifnally results show that the fast polarization directions are mainly concentrated in-12°—6°,and delay times,mainly in about 0.9 s,which is agree with those of other literature studies. Through this S wave splitting research of single station,a wider range of effective methods for the S wave splitting is presented for the future study,also put forward new ideas for the future single seismic disciplinary research work.