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2004年6月17日四川宜宾4.5级地震烈度考察及灾害损失评估
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摘要
2004年6月17日5时25分在四川省宜宾县境内发生的4 5级地震宏观震中位于白花镇与孔滩镇交界部位。震中区烈度为Ⅵ度区和Ⅴ度区,面积各为5km2和150km2。等震线分布总体形态呈长轴走向为北东向的椭圆状。震区建筑物出现一些破坏或损坏的现象。地震造成直接经济损失1535万元,约占宜宾县2003年国民生产总值20 0429亿元的0 77%。
        An earthquake with magnitude 4.5 occurred on 17 June 2004 in the north part of Yibin County,Sichuan Province.The macro-seismic epicenter situated in the border area between Baihua Town and Kongtan Town.The epicenter inensity is about Ⅵ degree.The area of Ⅵ region and Ⅴ region are 5 km~2 and 150 km~2 respectively.The distribution of iso-intensity lines is generally oval in the shape with northeastward axis.In seismic region,some of buildings are damaged or affected obviously.The directive economic loss caused by this event is about 15.350 million RMB Yuan(which is about 0.77% of GDP in 2003,Yibin County).
引文
[1] Chester,J S ,etal ,1991,Influenceoflayeringandbourdaryconditionsonfault-bendandfault-progationfolding Geol Soc Am Bull Vol 103.
    [2] 钱洪,等 四川盆地地震地质基本特征[J] 四川地震,1992,(3).
    [3] 周荣军,唐荣昌,等 地震构造类比法的应用—以川东地区华蓥山断裂带为例[J].地震研究,1997,20(3).
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