Upper crustal velocity of Lijiang-Qingzhen profile and its relationship with the seismogenic environment of the M(s)6.5 Ludian earthquake | |
Xu Tao1; Zhang Ming-Hui1,2; Tian Xiao-Bo1; Zheng Yong3; Bai Zhi-Ming1; Wu Cheng-Long1,2; Zhang Zhong-Jie1; Teng Ji-Wen1 | |
刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION |
2014-09-01 | |
卷号 | 57期号:9页码:3069-3079 |
关键词 | Ludian earthquake Active seismic source First-arrival seismic tomography Finite-difference method Upper crust velocity structure Zhaotong-Lianfeng fault Xiaojiang fault |
ISSN号 | 0001-5733 |
DOI | 10.6038/cjg20140932 |
文献子类 | Article |
英文摘要 | On August 3, 2014, an M(s)6.5 earthquake occurred in Ludian County, Yunnan. The. Ludian earthquake ruptured along the NE-oriented Zhaotong - Lianfeng fault zone, western margin of the Yangtze block. However, there was no seismic sounding profile across the Zhaotong Lianfeng fault zone up to now. Since the distance from Lijiang - Panzhihua - Qingzhen active source seismic sounding profile to the Ludian earthquake source region is within 50 km, we can handle the wide-angle seismic data to reveal the upper crustal velocity structure in this area, and provide the velocity model of upper crust for the earthquake locating and focal mechanism inversion of Ludian earthquake sequence, etc. The velocity profile shows that the crustal velocity around the Xiaojiang fault is lower than its periphery, thus the rheological strength of the upper crust beneath the Xiaojiang fault is speculated to be weaker than its surrounding areas. Considering the high strain rate along the Xiaojiang fault, it is possible to accumulate great strain and strong stress in the Xiaojiang fault zone and its surrounding faults. Thus we should pay attention to the potential risk of strong earthquakes on the Xiaojiang fault and its nearby Ludian - Zhaotong fault. |
WOS关键词 | 1ST-ARRIVAL TRAVEL-TIMES ; DEPENDENT EIKONAL EQUATION ; EMEISHAN FLOOD BASALTS ; LARGE IGNEOUS PROVINCE ; SOUTHWESTERN CHINA ; IRREGULAR SURFACE ; GEOLOGICAL MODELS ; TIBETAN PLATEAU ; WESTERN YUNNAN ; UPPER-MANTLE |
WOS研究方向 | Geochemistry & Geophysics |
语种 | 英语 |
出版者 | SCIENCE PRESS |
WOS记录号 | WOS:000342479900032 |
内容类型 | 期刊论文 |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/85048] |
专题 | 中国科学院地质与地球物理研究所 |
通讯作者 | Xu Tao |
作者单位 | 1.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, State Key Lab Geodesy & Earths Dynam, Inst Geodesy & Geophys, Wuhan 430077, Peoples R China |
推荐引用方式 GB/T 7714 | Xu Tao,Zhang Ming-Hui,Tian Xiao-Bo,et al. Upper crustal velocity of Lijiang-Qingzhen profile and its relationship with the seismogenic environment of the M(s)6.5 Ludian earthquake[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2014,57(9):3069-3079. |
APA | Xu Tao.,Zhang Ming-Hui.,Tian Xiao-Bo.,Zheng Yong.,Bai Zhi-Ming.,...&Teng Ji-Wen.(2014).Upper crustal velocity of Lijiang-Qingzhen profile and its relationship with the seismogenic environment of the M(s)6.5 Ludian earthquake.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,57(9),3069-3079. |
MLA | Xu Tao,et al."Upper crustal velocity of Lijiang-Qingzhen profile and its relationship with the seismogenic environment of the M(s)6.5 Ludian earthquake".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 57.9(2014):3069-3079. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论