华南地震2011，Vol.31Issue(1)：10-17,8.
甘肃地区水氡(流量)异常与周边中强地震的关系探讨
Discussion on Relationship of Water Radon (flow) and Medium Earthquakes in Gansu Region
摘要
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关键词
氡异常/水氡/甘肃(周边)地区/中强地震/流量Key words
Radon anomaly/ Water radon/ Gansu and its adjacent area/ Medium earthquake/Flow分类
天文与地球科学引用本文复制引用
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):10-17,8.基金项目
甘肃地震重点危险区震情深入跟踪(2010010105).甘东南-陕甘宁地震重点危险区及邻区强震危险性分析及跟踪研究(2010010110). （2010010105）
