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Primary Research on the Tidal Force of Celestial Body and Temperature Change during Gaoling M_S4.4 Earthquake in Xi′an City

CHEN Wen-chen1,2,YE Wei1,2,FENG Yi-xiong2,LI Li-xia2,MA Wei-yu1,2,ZHAO Hu1,2(1.Lab.of Remote Sensing Application,Zhejiang Normal University,Zhejiang Jinhua 321004,China; 2.College of Tourism and Resource Management,Zhejiang Normal University,Zhejiang Jinhua 321004,China)  
The cycle process of tidal force of celestial body for Gaoling MS4.4 earthquake near Xi'an city on Nov.5,2009 is calculated.According to this cycle the integrated multi-source temperature data are analyzed,and the abnormal temperature change images before the earthquake are gottern.The result indicates that the tidal force of celestial body has a triggering effect on fault activity.The temperature abnormal change can clearly reflect the procession of seismic fault activity: initial temperature rise→abnormally drop→return to baseline.It is shown that the effect of tidal force of celestial body on micro-earthquake activity is obvious and the temperature anomalies in micro-earthquakes are also clear.It is a good evidence for relationship between earthquake and thermal anomaly,and also for using geothermal anomaly to predict earthquake.
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