台湾海峡及两岸发震断裂的对比研究  

CONTRASTIVE RESEARCH ON THE SEISMIC FAULT IN TAIWAN STRAIT AND BOTH ITS COASTS

作　　者：陈园田[1] 王志鹏[1] 谢志招[1] 叶建辉[1] 陈祥熊[2] 

机构地区：[1]中国地震局厦门地震勘测研究中心,厦门361021 [2]福建省地震局分析预报中心,福州350003

出　　处：《地壳形变与地震》2001年第4期67-75,共9页Crustal Deformation and Earthquake

基　　金：福建省自然科学基金课题"福建及台湾地区三维地壳结构与震源反演"(D9910 0 18)的部分成果

摘　　要：对比研究了台湾海峡西岸福建沿海北东向龙海角美 -白云山断裂、台湾海峡北东向平潭牛山岛 -东山兄弟屿断裂和台湾海峡东岸台湾岛北东向中央山脉等断裂晚更新世以来的活动性及其与地震的关系。结果表明 ,作为欧亚大陆板块与太平洋菲律宾海板块的边界断裂之一的中央山脉断裂第四纪以来乃至现今仍具有强烈的活动 ,因而发生了 4次M≥ 7地震 ;作为台湾海峡沉降带与福建武夷 -戴云复式隆起的边界断裂的平潭牛山岛 -东山兄弟屿断裂全新世晚期 (2 5 0 0a以来 )仍具有强烈的活动 ,从而发生了 3次M≥ 7地震 ;作为北东向长乐 -诏安断裂带西界断裂组成部分的龙海角美 -白云山断裂晚更新世期间具有强烈的活动 ,因而发生了 5次M =5～ 6This paper has studied contrastively the activity of the NE Jiaomei Baiyunshan fault in Longhai at the west coast of Taiwan Strait, the NE Niushandao (in Pintang) Xiongdiyu (in Dongshan) fault in the Taiwan Strait and the NE Central Mountain fault in Taiwan island at the east coast of Taiwan Strait since epipleistocene and the relation to earthquakes occured. The results show, as one of the boundary faults between the Eurasian Plate and the Pacific Philippine Ocean Plate, the Central Mountian Fault has acted strongly since Quaternary, so earthquakes with magnitude≥7.0 occured 4 times; as the boundary fault between the subsidence zone in Taiwan strait and the Wuyi Daiyun complex swell in Fujian, the Niushandao Xiondiyu fault has acted strongly since late Holocene (2500a), so the earthquakes with magnitude≥7.0 occured 3 times; and the Jiaomei Baiyunshan fault, as a part of the west boundary fault in NE direction from Changle to Zhaoan in Fujian has acted strongly since late Pleistocene, so the earthquakes with magnitude between 5.0 to 61/2 occured 5 times.\;

关 键 词：活动断裂带 晚第四纪 台湾海峡 地震活动性 发震断裂 

分 类 号：P315.2[天文地球—地震学] P315.5[天文地球—固体地球物理学]