青藏高原强震活动特征研究  

Study on Characteristics of Strong Earthquake Activity in Qinghai-Tibet Pateau

作　　者：陈大庆[1] 叶秀薇[1] 方震[2] 邵叶[1] 钟天任[1] 李晓慧 CHEN Daqing;YE Xiuwei;FANG Zhen;SHAO Ye;ZHONG Tianren;LI Xiaohui(Guangdong Earthquake Agency,Guangzhou 510075,China;Anhui Earthquake Agency,Hefei 230031,China)

机构地区：[1]广东省地震局,广州510075 [2]安徽省地震局,合肥230031

出　　处：《华南地震》2023年第4期1-7,共7页South China Journal of Seismology

基　　金：2022年度甘肃省科技重点研发计划项目:河西走廊地震危险等级综合判定分析与应用(22YF7FA079)。

摘　　要：青藏高原及内部次级块体的强震活动存在显著的时空丛集特征,20世纪以来青藏高原经历了3次强震活动时空主体地区的转换,呈现了较为复杂的活动特征。利用各次级块体沿主要活动断裂走向的时空投影图,研究了全时空域的青藏高原及内部次级块体的强震活动特征,并依据这些特征对青藏高原的未来强震活动做出了一些初步分析和判断。The strong earthquake activities in the Qinghai-Tibet Plateau and its internal sub-blocks have significant spatial-temporal clustering characteristics.Since the 20th century,the main spatial and temporal distribution of strong earthquake activities in the Qinghai-Tibet Plateau has experienced three times of regional transformations,showing more complex activity characteristics.The characteristics of strong earthquake activities in the Qinghai-Tibet Plateau and its internal sub-blocks are studied by using the spatial-temporal projections of each sub-block along the strike of the main active faults.Based on these characteristics,some preliminary analysis and judgement are made on the future strong earthquake activities in the Qinghai-Tibet Plateau.

关 键 词：青藏高原 次级块体 时空投影图 强震活动特征 

分 类 号：P315.7[天文地球—地震学]