琼北火山区地震活动特征探讨  

Features of Seismic Activities in Qiongbei Volcanic Area

作　　者：郭明瑞[1] 胡久常[1] 王锡娇[1] 马龙 王桂丹[1] 郑在壮[1] 吴佳林[1] Guo Mingrui;Hu Jiuchang;Wang Xijiao;Ma Long;Wang Guidan;Zheng Zaizhuang;Wu Jialin(Earthquake Administration of Hainan Province, Haikou Hainan 570203, China)

机构地区：[1]海南省地震局,海南海口570203

出　　处：《工程地球物理学报》2020年第2期184-189,共6页Chinese Journal of Engineering Geophysics

摘　　要：火山灾害是人类面临的严重自然灾害之一。首先对琼北火山区自火山建台以来记录到的地震进行梳理,然后为研究火山地震建立目录,并选取火山区的地震进行时频分析,通过震相、频谱等方法,探讨火山区地震类型及其活动特征,分析确认火山区地震非火山地震,为以后火山研究、火山预警奠定了基础。Volcanic eruption is one of the serious natural disasters for human being.We sorts out the earthquakes recorded in Qiongbei volcanic area since the volcanic platform was built,and builds a catalog.Some earthquakes in the volcanic area have been selected for time-frequency analysis.This paper also discusses the seismic types and features in the volcanic area by the seismic phase,spectrum and other tools.The results show that the earthquake in volcanic area is not a volcanic earthquake,which lays a foundation for future volcanic research and early warning.

关 键 词：火山地震 震相 频谱 岩浆 

分 类 号：P631.4[天文地球—地质矿产勘探] P315.7[天文地球—地质学]