【摘要】 以山西带10期GNSS复测资料(2002—2011)为基本依托,借助GAMIT/GLOBK/QOCA软件计算了山西带2002—2010年的平均水平运动速率及2011年3月11日日本9.0级特大地震之后至8月的总体偏离位移,同时利用多核函数对该震的同震位移进行了数值解析。结果表明:①2002—2010年水平运动速率普遍小于1.0mm/a,有一定的随机性,一致性和规律性较差;②日本地震的同震位移方向近于正东向,其中最大值达到6.3mm,位于山西带北端,最小值为3.4mm,位于山西带南端;③震后偏离位移在山西南部表现为以北向为主的运动,平均位移约4.0～5.0mm;中部为北东向运动,平均位移约1.0～3.0mm;北部则向北北东、北东向运动,平均位移是3.0～4.0mm。更多还原

【Abstract】 Based on the analysis of ten years’ GNSS data(2002—2011) in Shanxi area,the average motion velocity of the area from the year 2002 to 2010 and the general displacement caused by the March 11,2011 Mw 9.0 Tohoku-oki earthquake,are obtained through GAMIT/GLOBK/QOCA.The coseismic displacement is resolved using multi-kernel function.The results show that:(1) 2002—2004 horizontal motion velocity is generally less than 1.0mm/a,randomicity and poor in consistency and regularity;(2) The coseismic displacement of Tohoku-oki earthquake points generally to the east;and the maximum value reaches 6.3mm,located in Northern Shanxi;the minimum value is 3.4mm,located in Southern Shanxi;(3) After Tohoku-oki earthquake,the non-coseismic displacement points generally to north in Southern Shanxi,averaged 4～5 mm;to NE in Middle Shanxi,averaged 1～3 mm;to NNE or NE in Northern Shanxi,averaged 3～4 mm.更多还原