| 陕西几例特殊的无震异常及其成因分析 |
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| 引用本文： | 吴富春,张鸿福,景北科,段锋,张义民.陕西几例特殊的无震异常及其成因分析[J].西北地震学报,1999,21(3). |
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| 作者姓名： | 吴富春 张鸿福 景北科 段锋 张义民 |
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| 作者单位： | 1. 陕西省地震局,陕西,西安,710068
2. 渭南市地震局,陕西,渭南,714000 |
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| 基金项目： | 地震科学联合基金资助项目 |
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| 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
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| 关 键 词： | 陕西 异常识别 无震异常 |
STUDY ON SOME SPECIAL ASEISMIC PRECURSORY ANOMALIES OBSERVED FROM SHAANXI SEISMIC NETWORK AND THEIR CAUSES |
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| WU Fuc-hun,ZHANG Hong-fu,JING Bei-ke,DUAN Feng,ZHANG Yi-min.STUDY ON SOME SPECIAL ASEISMIC PRECURSORY ANOMALIES OBSERVED FROM SHAANXI SEISMIC NETWORK AND THEIR CAUSES[J].Northwestern Seismological Journal,1999,21(3). |
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| Authors: | WU Fuc-hun ZHANG Hong-fu JING Bei-ke DUAN Feng ZHANG Yi-min |
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| 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. |
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| Keywords: | Shaanxi Anomaly recognition Aseismic precursory anomaly |
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