摘要
介绍了陕西省前兆台网记录到的几例特殊的无震异常.分析了这些异常产生的原因.认为1986 年和1996 年渭南双王井水位的2 次无震异常与渭河的洪峰有关;1977 年韩城地震台地倾斜特大异常可能与黄河水位变化有关;1983 年安康地震台地倾斜特大异常与该地区特大洪水有关;1996 年和1998 年三原井水位的2 次特大异常可能与附近的冯村水库蓄水有关
Some special aseismic precursory anomalies obtained from Shaanxi precursory network are presented.Analysing the cause of these anomalies,following views are got:the two anomalies of groundwater level of Shuangwang well,Weinan in 1986 and 1996 may be caused by the flood peaks of the Weihe River;the big anomaly of ground tilt observed from Hancheng station in 1977 had relation to the level of the Yellow River;the anomaly of ground tilt observed from Ankang station in 1983 was due to the big flood in Ankang area in that time;the two big anomalies of groundwater level of Sanyuan well had relation to water storage of Fengcun reservoir.
引文
[1] 张义民.双王井水位的渭河水体荷载效应及其机理分析[ J] .地震,1993 ,(3) :77 ~80 .
[2] 易学发,姜家兰,王振武,陈光辉,等.冯村水库引起的小震群活动[ J] .地震,1998 ,(3) :14 ~18 .
[3] 张鸿福,张惠玲.安康台地倾斜特征及一次震兆记录[ J] .内陆地震,1998 ,2(2) :212 ~214 .