A discussion on the records of water level ‘precursors’ in Well Shuozhou, Shanxi Province |
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| Authors: | Che Yong-tai Yu Jin-zi Zhang Shu-liang Fan Xue-fang Guo Jun-jie Zhang Tian-yuan and Yang Jin-lan |
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| Institution: | (1) Institute of Geology, China Seismological Bureau, 100029 Beijing, China;(2) Seismological Bureau of Shanxi Province, 030002 Taiyuan, China;(3) Seismological Office of Shuocheng District, Shuozhou, 038500 Shuozhou, Shanxi Province, China |
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| Abstract: | 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.
Foundation item: State Natural Science Foundation of China (19973011). |
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| Keywords: | well water level precursor Well Shuozhou |
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