【摘要】 利用天山中段数字化地震观测报告,采用多台和达法,计算了2012年6月30日新疆新源、和静交界6.6级地震前后波速比异常变化情况。结果表明:在该次地震前,波速比在空间上形成一个的低值异常区,其值在1.6左右,地震发生在该异常区的东北缘;地震发生后,震区周围波速比在1.8左右,基本恢复正常。更多还原

【Abstract】 Using multi-station method,this paper calculated velocity ratio anomaly before and after Xinyuan,Hejing earthquake with MS6.6 according to digital seismic report in middle section of Tianshan.The result shows: a low value region about 1.6 formed before earthquake and earthquake occured in northeast section of this region;the velocity ratio in seismic area returned to normal about 1.8 after earthquake.更多还原