| 四川地区地下水位对汶川地震的同震效应 |
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| 引用本文： | 邱桂兰,官致君,杨贤和,杨虹.四川地区地下水位对汶川地震的同震效应[J].华北地震科学,2011,29(2):40-44. |
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| 作者姓名： | 邱桂兰 官致君 杨贤和 杨虹 |
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| 作者单位： | 四川省地震局,成都,610041 |
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| 基金项目： | 全国地震形势跟踪分析项目 |
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| 摘 要： | 系统地清理、分析了四川地区2008年汶川地震时在测水位观测到的同震效应.结果显示:汶川地震的水位同震效应以阶跃变化中的阶升变化为主,同时兼有持续缓慢变化、潮汐畸变变化、无变化、脉冲变化和突跳式变化.研究表明:阶升、阶降井点在空间上分布不均匀,相对于震中位置的关联性不强,但距离震中越近,阶升的台项越多.震时水位变化幅度不...
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| 关 键 词： | 汶川地震 水位观测 同震效应 四川地区 |
Study on Coseismic Water-Level Changes of the Wenchuan Ms8.0 Earthquake in Sichuan Area |
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| QIU Gui-lan,GUAN Zhi-jun,YANG Xian-he,YANG Hong.Study on Coseismic Water-Level Changes of the Wenchuan Ms8.0 Earthquake in Sichuan Area[J].North China Earthquake Sciences,2011,29(2):40-44. |
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| Authors: | QIU Gui-lan GUAN Zhi-jun YANG Xian-he YANG Hong |
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| Institution: | (Earthquake Administration of Sichuan Province,Chengdu 610041,China) |
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| Abstract: | In this paper,coseismic water-level changes of Wenchuan MS8.0 earthquake in Sichuan area are analyzed.The results indicate that the coseismic water-level changes are mostly of step rising variation accompanied by continual slow change,tidal distortion,impulse and jump.The distribution of the coseismic water-level step changes is not uniform.The closer to the epicenter the more step rising anomalies there are,but the amplitude of the water level changes do not simply decrease with the distance to the epicenter. |
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| Keywords: | the Wenchuan MS8 0 earthquake groundwater observation in wells coseismic effect Sichuan area |
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