摘要
pan id="EnChDivSummary" name="EnDivSummary">At 11:55of May 7,2013,Victor G.Sibgatulin in the Special Engineering Design Bureau,Krasnoyarsk Scientific Center,Siberian Department of Russian Academy of Science,informed Zeng Zuoxun,the first author of the paper,that the natural electromagnetic pulse anomalies indicated that there would be an earthquake of magnitude about MS6in the west or east direction of the Wuhan City of China.At 22:20of May 7,2013,Song Song in the Professional Secondary School of Pingyuan County,Dezhou,Shandong,China,informed Zeng Zuoxun about an earthquake prediction cooperated with Song Kefu,based on his observation of a precursory halo lasted for 10minutes beginning from 11o’clock of May 7,2013.They predicted that an earthquake with magnitude ranging from MS5.5to 6.2would occur in 7days in the adjoining area of Tibet,Xinjiang and Qinghai of West China.On the basis of the comprehensive analysis of the prediction of Victor Sibgatulin and the prediction of Song Song and Song Kefu,and an observation for the locations of a degasification of the earth in the Naqu,Tibet by Zeng Zuoxun himself,the first author made a prediction for an earthquake around MS6in 10days in the area of the degasification point(31.5°N,89.0°E)and E-mailed the prediction to Song Song,Wang Jie and Pan Lili at 0:54of May 8,2013.He offered another degasification point(31°N,86°E)for the epicenter prediction at 8:34of the same day.At 18:54:30of May 15,2013,an earthquake of MS5.2occurred in the Nima County,Naqu,China.The epicenter is located at 31.6°N,86.5°E.The focus is at the depth of 10km.The occurring time of the Nima earthquake fell into the time window of the prediction made byZeng Zuoxun and by Song Song and Song Kefu.The epicenter of the Nima earthquake fell into the area around the second degasification point.The Nima earthquake fell basically into the predicted magnitude by Victor Sibgatulin,by Song Song and Song Kefu and by Zuoxun Zeng.The significance of the successful imminent prediction of the Nima earthquake is that it is a successful case of the cooperation between two countries and among three institutions.It further proves that the successful prediction needs comprehensive analysis with multiple-method information.It is indicated by the section of the crust in the area around the epicenter and by the research of the active faults in the area that the NNW-trending Laiduo-Cuomai fault is the triggering fault of the Nima earthquake,that the concentration and storage of the earthquake energy was closely related to the high conductivelow velocity layer in the mid-crust and that the current stress field controlling the fault activities in the Tibet area is of characteristics of compression in SN direction and extension in EW direction.pan>
