CAJ | 학술논문

通过对山西数字地震台网2000年6月-2012年12月的波形记录资料的分析，使用剪切波分裂系统分析方法，即 SAM 综合分析方法，获得了山西地区18个数字地震台站的快剪切波偏振结果。结果表明：位于活动断裂上的台站的快剪切波偏振优势方向与活动断裂的走向基本一致；个别距离断裂较远的台站的快剪切波偏振优势方向与震源机制解及 GPS 主压应变方向完全一致；少数位于几条断裂交汇处的台站的快剪切波偏振优势方向则较为复杂，与活动断裂的走向和 GPS 主压应变方向均不一致，反映了该地区断裂背景和应力分布特征的复杂性。
통과대산서수자지진태망2000년6월-2012년12월적파형기록자료적분석，사용전절파분렬계통분석방법，즉 SAM 종합분석방법，획득료산서지구18개수자지진태참적쾌전절파편진결과。결과표명：위우활동단렬상적태참적쾌전절파편진우세방향여활동단렬적주향기본일치；개별거리단렬교원적태참적쾌전절파편진우세방향여진원궤제해급 GPS 주압응변방향완전일치；소수위우궤조단렬교회처적태참적쾌전절파편진우세방향칙교위복잡，여활동단렬적주향화 GPS 주압응변방향균불일치，반영료해지구단렬배경화응력분포특정적복잡성。
Based on the analysis of seismic waveform data recorded by the Shanxi Digital Seismic Network from June 2000 to December 2012,the dominant polar-ization directions of fast shear-waves at 18 stations are obtained by use of the systematic analysis method (SAM)of shear-wave splitting in this study.The results show that for the stations located on active faults,the dominant polari-zation directions of fast shear-waves are mainly consistent with the strike of active faults;for individual stations further away from active faults,the domi-nant polarization directions are completely consistent with focal mechanism so-lutions and directions of regional principal compressive strains inferred from GPS data.While for a few stations located at the junction of several faults,the polarization of fast shear-wave is inconsistent with both the strike of active faults and the direction of principal compressive strain from GPS,indicating that faulting background and distribution characteristics of regional stress field are complex in Shanxi region.