| 关于汶川8.0级地震前两项异常真伪的探讨 |
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| 引用本文： | 朱航,邓建平,阳光.关于汶川8.0级地震前两项异常真伪的探讨[J].四川地震,2010(1). |
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| 作者姓名： | 朱航 邓建平 阳光 |
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| 作者单位： | 四川省地震局,四川,成都,610041 |
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| 基金项目： | 2010年度重点综合性合同制定向工作任务 |
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| 摘 要： | 2008年5月12日汶川8.0级地震前出现了成都台重力和姑咱台钻孔应变异常现象,是否属于地震前兆还存在争论.本文针对这些问题,分析了可能存在的环境因素影响及其引起的测值变化形态特征,并以实验方法验证了对姑咱台钻孔应变异常原因的推断.结论表明,成都台重力震前异常是由台风活动引起,姑咱台钻孔应变异常是钻孔内水位干扰所致.
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| 关 键 词： | 汶川8.0级地震 前兆异常 重力 钻孔应变 |
Discussion on the causes of 2 anomalies before the Wenchuan M8.0 earthquake |
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| ZHU Hang,DENG Jian-ping,YANG Guang.Discussion on the causes of 2 anomalies before the Wenchuan M8.0 earthquake[J].Earthquake Research in Sichuan,2010(1). |
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| Authors: | ZHU Hang DENG Jian-ping YANG Guang |
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| Affiliation: | ZHU Hang,DENG Jian-ping,YANG Guang(Earthquake Administration of Sichuan Province,Sichuan Chengdu 610041,China) |
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| Abstract: | Two observational anomalies,Chengdu seismic station gravity and Guzan seismic station borehole strain,appeared before 12 May 2008 Wenchuan M8.0 earthquake,whether they are earthquake precursors are still in dispute.In this paper,we analyze their possible environmental interference factors and the induced measurement value change characteristics,moreover,verify the deduced cause of the Guzan borehole strain anomaly through our experiments.Our results indicate that,the Chengdu gravity anomaly was caused by th... |
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| Keywords: | Wenchuan M8 0 earthquake precursory anomaly gravity borehole strain |
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