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Research on the Seismic Activity of the Lower Yangtze River-South Yellow Sea Seismic Zone

查看全文 作　　者：Xie [1]Zhuojuan;Lv [1]Yuejun;Peng [1]Yanju;Lan [1]Jingyan;Zhang [1]Lifang 高影响力作者 机构地区：[1]Institute of Crustal Dynamics,China Earthquake Administration高影响力机构 出　　处：《Earthquake Research in China》索引2013年第27卷第2期,共13页高影响力期刊 基　　金：sponsored by Institute of Crustal Dynamics,China Earthquake Administration ( ZDJ2013-05 );the sub-project from the Ministry of National Science and Technique's project( 2011ZX05056-001-02);the Special Scientific Research Fund of Seismological Public Welfare Profession of China ( 200708055) 摘　　要：The Lower Yangtze River-South Yellow Sea Seismic Zone,located at the southeast of the Northern China Seismic Zone, characterized by moderate-strong earthquakes, is an intensive earthquake zone,which is controlled by a series of faults within the Lower Yangtze River-South Yellow Sea Seismic Zone. This article counts and calculates the bvalue,V 4 and energy density value of medium-small earthquakes by taking full advantage of the latest data from regional seismic stations,reviews data of historical earthquakes and seismic structure,and discusses the relationship between spatial distribution of the b-value, historical strong earthquakes and spatial distribution of energy density of medium-small earthquakes,and further investigates the seismic activity of the Lower Yangtze River- South Yellow Sea Seismic Zone. This article obtains seismic activity parameters of the Lower Yangtze River-South Yellow Sea Seismic Zone as calculation parameters for probabilistic seismic hazard analysis,and discusses the trend of this seismic zone in the next one hundred years and deduces the potential seismic hazard region within this seismic zone,which provides references and methods for long-term prediction on seismic activity. The research results are significant to seismic zoning, seismic safety evaluation of engineering sites and long-term prediction of seismic activity. 关 键 词：地震活动性参数 长江下游 地震带 南黄海 概率地震危险性分析 地震安全性评价 长江中下游 中国北方地区
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