【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更多还原

【Abstract】 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.更多还原