• 首页关于本刊投稿须知期刊订阅编委会期刊合作查询检索English
引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1509次   下载 2262 本文二维码信息
码上扫一扫!
分享到: 微信 更多
中国大陆及边邻地区6 级以上地震序列的最大余震统计特征
任雪梅, 谭俊林, 马禾青, 曾宪伟
宁夏地震局,银川市北京东路244 号750001
摘要:
依据1966 年以来中国大陆及边邻地区记录相对完备的6 级以上地震序列资料,统计研究了地震的破裂类型和不同破裂类型下余震序列特征等,得到了不同破裂类型下不同余震序列比例和优势分布、主震震级与最大余震震级差的经验关系。主震与最大余震的震级关系线性较好,得到的经验公式可以为中国大陆及边邻地区同类地震的最大余震震级判定提供参考;最大余震发生在主震后10 天内的比例为43. 8% ~ 81. 8% ,正断型和走滑型中的孤立型的最大余震发生在主震后10 天内的比例高达80% 。
关键词:  中国大陆及边邻地区  序列类型  破裂类型  最大余震震级  时间间隔  主震震级
DOI:
分类号:
基金项目:宁夏回族自治区科技攻关计划项目(102164170)资助
Statistic features of maximum aftershock of earthquake sequences with MS≥6. 0 in Chinese mainland and its border region
Ren Xuemei, Tan Junlin, Ma Heqing, Zeng Xianwei
Earthquake Administration of Ningxia Hui Autonomous Region,Yinchuan 750001,China
Abstract:
Based on data of earthquake sequences with MS≥6. 0 in Chinese mainland and the border region since 1966,the paper studies different rupture types of the main shock and aftershock sequence characteristics under different fracture types. We obtain the experiential formula of the different proportion of aftershock,distribution of advantage,magnitude difference between main shock and maximum aftershock under different fracture types. Main shock magnitude and maximum aftershock magnitude have good linear relationship,and this kind empirical formula can provide the reference for the determination of maximum aftershock magnitude in Chinese mainland. The occurrence of maximum aftershock within 10 days after the main shock is 43. 8% ~ 81. 8%,while that of isolated maximum aftershock of strike-slip type and normal fracture type within 10 days after the main shock is up to 80% .
Key words:  Chinese mainland and its border region  Sequence type  Fracture type  Magnitude of maximum aftershock  Time interval  Magnitude of mainshock