大地测量与地球动力学2017，Vol.37Issue(5)：492-496,530,6.DOI:10.14075/j.jgg.2017.05.011
2012年新源和静6.6级地震前后P波速度结构的演化
Evolution of P Wave Velocity Structure before and after the Xinyuan-Hejing Ms 6.6 Earthquake in 2012
摘要
Abstract
Based on the phase observation report from Xinjiang regional seismic network,we use the finite difference tomography method to invert the P-wave velocity structure of the central and eastern segments of Xinjiang Tianshan mountain.We then acquire the half-annual scale for the evolution of P wave velocity structure before and after the Xinyuan-Hejing earthquake.The results show that the zone of high P-wave velocity difference is produced before the earthquake in the epicenter and the surrounding area at a depth of 12 km,with an anomaly amplitude up to 0.3 km/s.The apparent difference in speed reflects changes of the crust medium by half-annual scale of different time in the same depth of P-wave velocity differential analysis.关键词
新源和静6.6级地震/新疆天山中东段/有限差分层析成像方法/P波速度差Key words
Xinyuan-Hejing Ms 6.6 earthquake/central and eastern segments of Xinjiang Tianshan mountain/finite difference tomography method/P-wave velocity different分类
天文与地球科学引用本文复制引用
刘建明,李志海,冯雪玲,孔祥燕..2012年新源和静6.6级地震前后P波速度结构的演化[J].大地测量与地球动力学,2017,37(5):492-496,530,6.基金项目
中国地震局测震台网青年骨干培养专项(20140327) （20140327）
新疆地震科学基金(201506) （201506）
中国地震局“监测、预报、科研”三结合课题(163105).Special Fund for Youth Backbone of Seismic Network of CEA,No.20140327 （163105）
Earthquake Science Foundation of Xinjiang,No.201506 （）
Monitoring,Prediction,Research,Three-Pronged Research Topics of CEA,No.163105. （）
