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《Seismological and Geomagnetic Observation and Research》 2016-06
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Mutual interference between two sets of water thermometers in same layer observation

Li Huifeng;Yuan Baozhu;Lv Aobo;Ningbo Seismic Station;Ningbo Earthquake Monitoring Center;  
At Ningbo Seismic Station, "the ninth five-year plan" water thermometer can quickly record anomalous changes of earthquake precursor. "The tenth five-year plan" water thermometer was installed on April 2nd 2010 and made observation at the same depth in ZK03 well. During this same layer observation, both the two sets of water thermometers did not record the anomalous change of earthquake precursor. And on April 24 th 2015 "the tenth five-year plan" water thermometer probe stopped working due to power supply failure and then "the ninth five-year plan" recovered to recording the anomaly. The analysis found that they cannot record anomaly due to mutual interference between their probes during operation. Therefore, it is not suitable to make same layer observation of water temperature in wells with small bore and small flow.
【Key Words】: water temperature parallel observation precursor anomaly interference
【Fund】: 中国地震局95-01-02改造项目
【CateGory Index】: P315.72
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