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《SOUTH CHINA JOURNAL OF SEISMOLOGY》 1994-04
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A STUDY ON ANOMALOUS CHARACTERISTICS OF THE AMPLITUDE RATIO OF THE SEISMIC WAVE RECORDED AT A SINGLE STATION BEFORE MODERATE EARTHQUAKES

Yang Xin; Ao Xueming; Huang Jianying; Liu Yongting(Seismological Bureau of Xingjiang Uygur Autonomous Region,Urumqi 337730)  
In this paper, the systematic study on the amplitude ratio of the seismic wave recorded at Wulumuqi, Shichang and Kuerle Stations seperately in tens years indicated that the amplitude ratio shows anomalous variation more clearly in space and time distributions before moderate earthquakes. It might be indicated that when the change of seismogenic medium in the monitoring area, the amplitude ratio of seismic wave recorded at a single station coule show this variation process,and this method has a certain predicta bitity.
【CateGory Index】: P315.7
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