华南地震2017，Vol.37Issue(2)：10-16,7.DOI:10.13512/j.hndz.2017.02.002
铺前-清澜断裂带附近地震的重定位及其构造意义的初步分析
Relocation of Earthquakes near the Puqian-Qinglan Fault and Preliminary Analysis of Tectonic Significance
摘要
Abstract
Puqian-Qinglan fault is one of the most active seismotectonic faults of Hainan island. The fault constituted the seismotectonic fault of M 71/2 earthquake in 1605. Small earthquakes near the Puqian-Qinglan fault are still more active, and earthquakes are basically arranged in north -south direction, which doesn't correspond completely consistent with the southern part of Puqian-Qinglan fault. Based on the data recorded by digital seismic network of Hainan province during January 2000 and December 2014, the paper relocated the 128 small earthquakes by using the double-difference earthquake location method, and got 118 new parameters of the earthquake source. and the resuls show that the trend of earthquake distribution is NW2. The corresponding is not particularly well between fitting fault and Puqian-Qinglan fault, which maybe due to the fact that the active age of the northern section of Puqian-Qinglan fault is Holocene, the active age of the southern section of Puqian-Qinglan fault is early middle Pleistocene, southern earthquake activity moving toward west, inferring that the change related to the magma capsule.关键词
双差精定位/铺前-清澜断裂带/地震构造/地震活动/震源深度Key words
Double difference location method/Puqian-Qinglan fault/Seismic structure/Seismic activity/Focal depth分类
天文与地球科学引用本文复制引用
徐晓枫,王惠琳,胡久常,孙佩雯..铺前-清澜断裂带附近地震的重定位及其构造意义的初步分析[J].华南地震,2017,37(2):10-16,7.基金项目
海南省地震局青年基金项目(201401)资助 （201401）
