A lot of slow fluctuations of water level have been observed in the original recording maps of subsurface fluid in Well Shuozhou, Shanxi Province. Some typical recording maps of the 'precursors' are introduced...A lot of slow fluctuations of water level have been observed in the original recording maps of subsurface fluid in Well Shuozhou, Shanxi Province. Some typical recording maps of the 'precursors' are introduced in the paper and the features of the 'precursors' recorded by the well are analyzed. The results show that 38% strong earthquakes possess this kind of record, which has a fluctuation period arranging from several to tens of minutes and appear mostly two days before the earthquakes. Moreover, the mechanism, transmission and responding conditions of well water level are discussed, as well as the scientific meaning and practical value of the 'precursor' of the well water level in earthquake predictions.展开更多
As is well known, the many factors correlating the occurrence of an earthquake such as solar radiation, self-rotation rate of the earth, atmospheric circulation, drought and thermal vicissitude may all lead to the var...As is well known, the many factors correlating the occurrence of an earthquake such as solar radiation, self-rotation rate of the earth, atmospheric circulation, drought and thermal vicissitude may all lead to the variation of atmospheric temperature. Therefore it is of significance to research on the relationship between atmospheric temperature and earthquake, as has been reported. A preliminary analysis on the data collected in Yunnan Province shows that there exists an obvious relationship between the atmospheric temperature anomaly and a great展开更多
基金State Natural Science Foundation of China (19973011).
文摘A lot of slow fluctuations of water level have been observed in the original recording maps of subsurface fluid in Well Shuozhou, Shanxi Province. Some typical recording maps of the 'precursors' are introduced in the paper and the features of the 'precursors' recorded by the well are analyzed. The results show that 38% strong earthquakes possess this kind of record, which has a fluctuation period arranging from several to tens of minutes and appear mostly two days before the earthquakes. Moreover, the mechanism, transmission and responding conditions of well water level are discussed, as well as the scientific meaning and practical value of the 'precursor' of the well water level in earthquake predictions.
文摘As is well known, the many factors correlating the occurrence of an earthquake such as solar radiation, self-rotation rate of the earth, atmospheric circulation, drought and thermal vicissitude may all lead to the variation of atmospheric temperature. Therefore it is of significance to research on the relationship between atmospheric temperature and earthquake, as has been reported. A preliminary analysis on the data collected in Yunnan Province shows that there exists an obvious relationship between the atmospheric temperature anomaly and a great