【摘要】 研究了 1 996年 5月 3日包头西MS6 .4地震前地下流体半年和月异常频次变化速率 .对半年和月异常频次速率法的应用效果进行了检验 .结果发现 ,用上述 2种方法处理的资料异常比较明显 .在 9个测项中有 7个测项出现了中期异常 ,有 5个测项出现短期异常 ,其异常识别率优于原始图像法更多还原

【Abstract】 The half year and month anomalous frequency velocity rates of ground fluids before the Baotou M S6.4 earthquake on May 3,1996 are studied.Effects of the half year and month anomalous frequency velocity rate methods are tested.The results show that the seven items have medium term anomaly shows and five items have short term anomaly shows among nine observation items.The identification rates for anomalies by the two methods are better than that by the original patterns.更多还原