怀来地震台CO2异常变化特征与地震关系分析
CHARACTERISTICS OF THE CO2 ANOMALY IN HUAILAI SEISMOSTATION AND ITS RELATION WITH EARTHQUAKES
-
摘要: 分析了怀来后郝窑测点断层气CO2 1991~2006年的观测数据, 研究其与地温的相关性, 结果表明CO2与地温呈正相关, 一元线性回归分析和傅立叶去年周期方法消除观测中的干扰, 提取震前异常信息, 在2002年8月3日怀来4.4、2006年7月4日河北文安5.1级地震前均提取到地震前兆异常信息;再结合2002年以前的震例, 分析与探讨怀来后郝窑测点断层气CO2异常变化特征与地震关系。Abstract: The data of CO2 in Huailai Seismostation from 1991 to 2006is analyzed, and its relativity with ground temperature is studied.The results indicate that CO2 and ground temperature shows positive correlation.The relation of CO2 anomalies with earthquakes is also studied, and some anomalies are picked up before Huailai M4.4 earthquake(Aug.3, 2002) and Wen'an M5.1 earthquake(Jul.4, 2006).
下载: