东北地区面波相速度层析成像研究  

Study on Surface Wave Phase Velocity Tomography in Northeast China

作　　者：李秀丽[1] 李铁亮 高业欣 燕云[1] 雷晨[1] LI Xiu-li;LI Tie-liang;GAO Ye-xin;YAN Yun;LEI Chen(Liaoning Earthquake Agency,Liaoning Shenyang 110034,China;Shenyang Geotechnical Investigation & Surveying Research Institute,Liaoning Shenyang 110004,China)

机构地区：[1]辽宁省地震局,辽宁沈阳110034 [2]沈阳市勘察测绘研究院,辽宁沈阳110004

出　　处：《防灾减灾学报》2019年第2期1-8,共8页Journal of Disaster Prevention And Reduction

摘　　要：选取辽宁、吉林、黑龙江、内蒙东部共111个固定台站自2012年1月1日至2015年10月1日,震中距在2000~18000km范围内,震级在6.0以上的542个地震波形记录。使用双台法共提取8~160s周期范围内8242条高质量Rayleigh面波相速度频散曲线,通过Tarantola概率反演方法得到了研究区2°×2°分辨率的相速度分布图,并对研究区相速度分布进行了讨论分析。This paper selected a total of 111 fixed stations in Liaoning,Jilin,Heilongjiang and inner Mongolia from January 1,2012 to October 1,2015,with 542 seismic waveform records with an epicenter distance of 2000~1800km and a magnitude of 6.0 or more. A total of 8242 high quality Rayleigh surface wave velocity dispersion curves within the period of 8~160s were extracted by double method. The phase velocity distribution map of 2°×2° resolution of the research area was obtained by Tarantola probability inversion method. And the phase velocity distribution of the research area was discussed and analyzed.

关 键 词：东北地区 面波频散 相速度分布 双台法 

分 类 号：P315.3[天文地球—地震学]