【摘要】 绘制了重力测值的时序变化曲线和空间等值线,从动态的角度分析了2006年7月文安5.1级地震前的流动重力异常的演化及特征。结果显示,地震的孕育过程与重力场变化有关,震中位于重力变化高梯度区的"0"等值线附近。更多还原

【Abstract】 The timing sequence curves and spatial isolines of gravity are drawn,and the dynamic variation and its characteristics of gravity anomalies before Wenan M5.1earthquake that occurred on Jul.4,2006 are analyzed.The results show that the process of seismogeny is relevcmt to the variation of gravity field;the epicenter usually locates near 0 isoline of high grads region.更多还原