青海东北部地区多台波速比研究  

Research on Multi-station Wave Velocity Ratio in the Northeast of Qinghai Area

作　　者：刘文邦[1] 王培玲[1] 马玉虎[1] 

机构地区：[1]青海省地震局,青海西宁810001

出　　处：《地震研究》2014年第S1期45-49,共5页Journal of Seismological Research

基　　金：青海省地震科学基金课题(2011A01)资助

摘　　要：利用青海地震台网的数字化资料,采用单震多台和达法,研究了2009年1月至2014年3月青海东北部地区各子区域波速比变化。结果表明:该时段研究区的平均波速比基本分布在1.685~1.709,门源—武威地区波速比相对最低,且有降低趋势。Basing on digital data in Qinghai Seismic Network,we studied the variation of wave velocity ratio of each subarea in eastern Qinghai between Jan.,2009 to M ar.,2014 by multi-station.The results showas followsthe average wave velocity ratio was between 1.685 and 1.709 in the study area during this period,and the mean value of wave velocity ratio was the lowest and had a decreasing trend in M enyuan-Wuwei area.

关 键 词：波速比 多台和达法 青海东北部 

分 类 号：P315.31[天文地球—地震学]