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《PLATEAN EARTHQUAKE RESEARCH》 1996-01
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ANOMALOUS VARIATION OF SEISMIC WAVE VELOCITY RATIO BEFORE CANGSHAN EARTHQUAKE WITH M_s 5.2

Zhou Huanpeng;Lu Shou'an(Seismological Bureau of Shandong Province,China)  
The paper analyses the temporal and spatial distribution characters of the seismic wave velocity ratio in Lunan area befote Cangshan earthquake with Ms5.2,and it finds that the ratio appeared obvious low value anomaly.The anomalous character of temporal distribution is dropped-low value- recovery-earthquake occurrance.The spatial distribution is low value anomalous area which approached a circle,and its outlying area is seismic quiet.Before Cangshan earthquake with 5. 2,the authors put forward the predictive suggestion according to the anomalous variation of seismic wave velocity ratio in this area just before Cangshan earthquake with 5. 2.
【CateGory Index】: P65
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【References】
Chinese Journal Full-text Database 2 Hits
1 WT5HZ]DU Chang-ting,XU Lan-fen,ZHAO Yong-hai [WT5BX](Seismological Bureau of Qinghai Province,Xining Qinghai 810001,China) [WT5HZ];VARIATION OF SEISMIC WAVE BEFORE AND AFTER XINGHAI EARTHQUAKE WITH Ms 6.6[J];Platean Earthquake Research;2001-01
2 Geng Jie(Seismological Bureau of Shandong Province, Jinan, 250014)Ma zhifeng; Li Jinbo(Zaozhuang Seismological office, Shandong Province, Zaozhuang, 277101);THE DISCUSSION ON THE CHARACTERISTICS AND MECHANISM OF SEISMIC ANOMALY OF MANY HYDROGEOCHEMICAL ELEMENTS IN SHILIQUAN WELL BEFORE CANGSHAN MS 5. 2 EARTHQUAKE[J];NORTH CHINA EARTHGUAKE SCIENCES;1998-01
【Co-references】
Chinese Journal Full-text Database 2 Hits
1 Du Changtion; Xu Lanfen; Ji Jinmei (Seismological Bureau of Qinghai Proviace, China);VARIATION FEATURES OF SEISMIC WAVE VELOCITY RATIO BEFORE MENYUAN Ms 6. 4 AND GONGHE Ms 7.0 EARTHQUAKES[J];PLATEAN EARTHQUAKE RESEARCH;1997-02
2 Lu Shou'an;Diao Shouzhong(Seismological Bureau of Shandong Province,China);STUDY ON CANGSHAN EARTHQUAKE WITH Ms5. 2 ON SEPT. 20, 1995 IN SHANDONG PROVINCE[J];PLATEAN EARTHQUAKE RESEARCH;1996-01
【Secondary References】
Chinese Journal Full-text Database 3 Hits
1 DIAO Shou zhong,LIU Xi lin,HUA Ai jun (Seismological Bureall of Shandong Province,Shandong Jinan 250014);TIME-SPACE EVOLUTION CHARACTER OF ANOMALY SWARMS FOR THE CHANGSHAN M_s 5.2 EARTHQUAKE[J];Seismological Research of Northeast China;2002-02
2 JIANG Yue1,DU Jian-guo1,YI Li1,LUO Li2,WANG Fu-kuan3,CHEN Zhi1(1.Institute of Earthquake Science,CEA,Beijing 100036,China;2.Institute of Geology,CEA,Beijing 100029,China;3.Inner Mongolia Corporation Ltd.of Geological Engineering,Hohhot 010051,China);Experimental Study of Water-sandstone Reaction under Triaxial Stress[J];Earthquake;2009-02
3 WANG Pei-ling,SUN Li(Earthquake Administration of Qinghai Province,Xining 810001,China);APPLICATION OF SEISMIC WAVE IN EARTHQUAKE PREDICTION RESEARCH IN QINGHAI PROVINCE[J];Plateau Earthquake Research;2008-03
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