| 甘肃地区水氡(流量)异常与周边中强地震的关系探讨 |
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| 引用本文： | 张昱,刘小凤,李晓峰,曹玲玲,钟美娇.甘肃地区水氡(流量)异常与周边中强地震的关系探讨[J].华南地震,2011,31(1):10-17. |
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| 作者姓名： | 张昱 刘小凤 李晓峰 曹玲玲 钟美娇 |
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| 作者单位： | 甘肃省地震局,甘肃兰州,730000 |
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| 基金项目： | 甘肃地震重点危险区震情深入跟踪，％％ |
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| 摘 要： | 甘肃及周边地区是一个中强震多发区,该地区的前兆异常对青藏高原北缘地区强震活动有着敏感的反映.1980年以来该区发生5.0级以上地震20余次.多次地震前,甘肃地区的水氡资料出现了大量的中短期异常.分析了甘肃省目前仍在继续观测、观测环境较好、仪器稳定的水氡测点在甘肃及周边地区发生的中强地震前资料的变化情况,发现多数测点在多...
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| 关 键 词： | 氡异常 水氡 甘肃(周边)地区 中强地震 流量 |
Discussion on Relationship of Water Radon (flow) and Medium Earthquakes in Gansu Region |
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| ZHANG Yu,LIU Xiaofeng,LI Xiaofeng,CAO Lingling,ZHONG Meijiao.Discussion on Relationship of Water Radon (flow) and Medium Earthquakes in Gansu Region[J].South China Journal of Seismology,2011,31(1):10-17. |
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| Authors: | ZHANG Yu LIU Xiaofeng LI Xiaofeng CAO Lingling ZHONG Meijiao |
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| Institution: | (Earthquake Administration of Gansu Province,Lanzhou 730000,China) |
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| Abstract: | Medium earthquake often occurrs in Gansu and its adjacent areas,the precursory anomalies can sensitively reflect the strong earthquakes in the northern Tibetan Plateau.More than 20 earthquakes with M≥5.0 have occurred in this area since 1980.There were plentiful medium and short term anomalies of water radon before some earthquakes in Gansu region.This paper analyzed the change of data in the water radon points in Gansu province before medium earthquakes,which had continuously observation,best observation environment and stable instrument,and found obvious medium-short term anomalies or short-impending anomalies appearing before some earthquakes in most points.The earthquake-reflecting effect of gas radon is best in Jiayuguan and the anomalous shape mainly is broken annual variation.Precursory anomalies of water radon in Wushan 1st spring and Tianshui Huaniu are mostly broken annual variation or low value anomaly,precursory anomaly of Qingshui flow is high value anomaly.The main anomaly appearing before some big earthquakes is trend anomaly of synchronized change |
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| Keywords: | Gansu and its adjacent area Medium earthquake Flow |
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