内蒙古数字化记录近震震相特征

Characters of digital records of near earthquake in Inner Mongolia

对内蒙古测震台网2008年以来速报的346次地震(包括天然地震与爆破、塌陷)进行统计,以典型震例,分区域、分类别总结震相特征。在此基础上,讨论利用典型震例与波形互相关性在未来地震定位与震相精确识别方面应用的可能性,及利用非常规震相(sPn震相)准确测定震源深度的应用前景。通过以上分析,以期进一步提高内蒙古地震速报和编目工作质量。

By means of reanalyzing346native earthquakes(include natural earthquakes,blasting and collapse)within30km besides the border of Inner Mongolia from2008,the phase characteristics and difficulty of identification are researched,the typical earthquake examples are picked out.The characteristics of earthquake phases are summarized and divided into regions and classifications.On that basis,the possibility of using typical earthquake cases and waveform intercorrelation in future seismic positioning and seismic phase recognition are discussed.And the application prospect of unconventional seismic phase,such as sPn,in the accurate measurement of source depth is also explored.The results of this study will further improve the quality of earthquake speed reporting and cataloguing,and provide effective learning materials for new people to learn the characteristics of seismic waveforms in the area.