IGGCAS OpenIR  > 岩石圈演化国家重点实验室
The latest seismicity characteristics and significance in Longmenshan Fault Zone
Liu XiaoMei1,2; Wu Jing1; Liang ChunTao3,4; Qian QiWei1,2; Du PeiXiao1,2
2019-04-01
Source PublicationCHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
ISSN0001-5733
Volume62Issue:4Pages:1312-1322
AbstractCombining the newly established Longmenshan Seismic Gap Array (LmsSGA) with the permanent stations from Sichuan Earthquake Administration, we carry out double-difference location for 23479 events from November 21st, 2016 to October 28th, 2017 in Longmenshan Fault Zone and obtain 6111 relocated events including Wenchuan aftershocks and Lushan aftershocks. Comparing with the early aftershocks of Wenchuan event, we find that the aftershocks are still active after 10 years of Wenchuan earthquake. The Wenchuan aftershocks mainly distribute between 10 to 25 km in depth, and the focal depths in the southwestern section are much deeper compared with the depths in the northeastern section. In addition, compared with the early aftershocks of Wenchuan earthquake, the distribution of the latest aftershocks is much deeper. The aftershocks migrate toward the deeper depth in the most recent years. However, the aftershocks of Lushan earthquake are relatively weak. Moreover, the depths are mainly located between 10 to 15 km, which are much shallower than the earlier aftershocks. The distribution of the latest aftershocks in Longmenshan Fault Zone shows that the aftershocks migrate in space with time. Considering that the elapse time has been 5 similar to 10 years after the two mainshocks respectively, we suggest that the aftershock migration may be triggered by quasi-static mechanism, such as fluid diffusion.
KeywordLongmenshan Fault Zone Phase picking Double-difference relocation Wenchuan earthquake Lushan earthquake
DOI10.6038/cjg2019M0283
WOS KeywordM8.0 WENCHUAN EARTHQUAKE ; 6.6 LUSHAN EARTHQUAKE ; SICHUAN ; RELOCATION
Language英语
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000467680300011
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/92130
Collection岩石圈演化国家重点实验室
Corresponding AuthorWu Jing
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Sichuan, Peoples R China
4.Chengdu Univ Technol, Key Lab Earth Explorat & Informat Technol, Minist Educ, Chengdu 610059, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Liu XiaoMei,Wu Jing,Liang ChunTao,et al. The latest seismicity characteristics and significance in Longmenshan Fault Zone[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2019,62(4):1312-1322.
APA Liu XiaoMei,Wu Jing,Liang ChunTao,Qian QiWei,&Du PeiXiao.(2019).The latest seismicity characteristics and significance in Longmenshan Fault Zone.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,62(4),1312-1322.
MLA Liu XiaoMei,et al."The latest seismicity characteristics and significance in Longmenshan Fault Zone".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 62.4(2019):1312-1322.
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