2011年云南盈江Ms5.8级地震序列的潮汐触发研究  

TIDAL TRIGGERING OF YINGJIANG M5.8 EARTHQUAKE SEQUENCE IN 2011

作　　者：闫如玉 解朝娣[1] 雷兴林[2] 张涵 贾蕊 李祥 刘本玉[1] 董非非 邓辉 YAN Ruyu;XIE Chaodi;LEI Xinglin;ZHANG Han;JIA Rui;LI Xiang;LIU Benyu;DONG Feifei;DENG Hui(Institute of Resources,Environment and Earth Sciences,Yunnan University,Kunming650091,China;Geological Survey of Japan,Tsukuba 305-8567,Japan;JiangxiEarthquake Agency,Nanchang 330096,China)

机构地区：[1]云南大学资源环境与地球科学学院,云南昆明650091 [2]日本产业技术综合研究所,日本筑波305-8567 [3]江西省地震局,江西南昌330096

出　　处：《高原地震》2019年第2期12-19,25,共9页Plateau Earthquake Research

基　　金：国家自然科学基金项目(项目编号:41574043)资助

摘　　要：采用Schuster谱和KORRECT统计方法,以2011年3月10日云南盈江Ms5.8级地震及其地震序列为研究对象,通过Schuster谱分析确定地震序列中存在的主要周期成分,并依据主要周期确定脉冲宽度,并利用KORRECT方法进一步验证地震序列主要周期的显著度。结果显示,2011年盈江Ms5.8级地震序列有明显的日潮和半日潮2种周期成分,并且这2种潮汐周期都检验出了类似正弦曲线的地震活动分布。说明2011年云南盈江地震序列主要受到日潮和半日潮的潮汐触发作用。In this paper,two statistical methods,Schuster spectrum and KORRECT,are used to analyze the Yingjiang M s5.8 earthquake and its seismic sequence on March 10,2011. First,the main periodic components in the seismic sequence are determined by Schuster spectrum analysis,and the pulse width is determined according to the main period. Then,the KORRECT method is used to further verify the significance of the main period of the seismic sequence. The results show that Yingjiang M s5.8 earthquake sequence in 2011 has obvious diurnal and semi-diurnal tidal components,and the sinusoidal seismic activity distribution is detected in both tidal cycles. It shows that Yingjiang earthquake sequence in Yunnan in 2011 is mainly triggered by the tides of the diurnal and semidiurnal tides.

关 键 词：盈江Ms5.8级地震 地震序列 Schuster谱分析 KORRECT方法 

分 类 号：P315.3[天文地球—地震学]