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[1]YANG Xing-yue,WANG Yan,GOU Ya-jiang,et al.Study on Mid-term Anomalies of Radon in Southeast Gansu Province[J].Journal of Seismological Research,2011,34(01):0-.

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Study on Mid-term Anomalies of Radon in Southeast Gansu Province

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 34 Number of periods: 2011 01 Page number: 0- Column: Public date: 2011-03-09

Title:: Study on Mid-term Anomalies of Radon in Southeast Gansu Province

Author(s):: YANG Xing-yue¹; 2; WANG Yan³; GOU Ya-jiang³; YANG Fei³; TIAN Wen-tong³; LI Xu-sheng³; YAO Yu-xia³; FAN Zhi-wei⁴; (1.Lanzhou Institute of Seismology,CEA,Lanzhou 730000,Gansu,China)(2.Wushan Seismic Station,Earthquake Administration of Gansu Province,Tianshui 741308,Gansu,China)(3.Earthquake Administration of Gansu Province,Lanzhou 730000,Gansu,China)(4.Earthquake Administration of Hebei Province,Shijiazhuang 050021,Hebei,China)

Keywords:: Radon; subordinate function; variation rate; trend rate; precursory anomaly; Southeast Gansu Province

CLC:: P315.75

DOI:: -

Abstract:: Using the methods of subordinate function,variation rate and trend rate,we extract the earthquake precursory anomalies from observational data of Radon in southeast Gansu Province.The result indicates that 7 items of radon data include 47 subordinate-function anomalies,45 variation-rate anomalies and 39 trend-rate anomalies from January 1984 to December 2009.Among them,33 subordinate-function anomalies,35 variation-rate anomalies and 30 trend-rate anomalies corresponded with the earthquakes M_S5-8 that ever hit Gansu Province and the adjacent region within 33 to 585 km.By the analysis of the features of these anomaies and their relation to the earthquakes,the method of time prediction for the moderate-strong and strong earthquake were proposed,and the empirical constant,variation rate and threshold value of trend-rate anomaly are obtained from Radon in southeast Gansu Province.

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Last Update: 2011-03-30