典型文献
Is clustered seismicity an indicator of regional stress?Insights from earthquake sequences in Yongning-Luguhu faulted basin,Southwest China
文献摘要：
Using hypocenter relocation,moment tensor inversion,stress field inversion,and fault slip tendency analysis,this study systematically investigated three M5.5-5.8 earthquake sequences that occurred after 2000 in the Yongning-Luguhu faulted basin in the middle of the Lijiang-Xiaojinhe fault zone within the Sichuan-Yunnan block,Southwest China.Our results show that since the 2008 Wenchuan earthquake,the tectonic stress pattern in this area may have changed and that b-values estimated for the earthquake sequences show evidence of an increasing trend in stress in the study area.Seismicity in the small-scale faulted basin adjacent to the large-scale fault zone is a possible indicator of regional stress.We also note that the aftershocks of the M5.7 earthquake sequence in 2012 and the M5.5 earthquake sequence in 2022 show relatively clear fluid diffusion-triggering characteristics.Overpressure of deep fluids is still the main factor driving seismic activity in the region,and we propose that the background tectonic stresses have not yet reached critical levels.
文献关键词：
中图分类号：
作者姓名：
Xinglin Lei;Guangming Wang
作者机构：
Geological Survey of Japan,National Institute of Advanced Industrial Science and Technology(AIST),Higashi 1-1-1,Tsukuba,Ibaraki,305-8567,Japan;Yunnan Earthquake Agency,Kunming,650224,China
文献出处：
引用格式：
[1]Xinglin Lei;Guangming Wang-.Is clustered seismicity an indicator of regional stress?Insights from earthquake sequences in Yongning-Luguhu faulted basin,Southwest China)[J].地震研究进展（英文）,2022(03):14-24
A类：
Yongning,Luguhu,faulted,Xiaojinhe,Overpressure
B类：
Is,clustered,seismicity,indicator,regional,Insights,from,earthquake,sequences,basin,Southwest,China,Using,hypocenter,relocation,moment,tensor,inversion,field,slip,tendency,analysis,this,study,systematically,investigated,three,M5,that,occurred,middle,Lijiang,zone,within,Sichuan,Yunnan,block,Our,results,show,since,Wenchuan,tectonic,pattern,area,may,have,changed,values,estimated,evidence,increasing,trend,Seismicity,small,scale,adjacent,large,possible,also,note,aftershocks,relatively,clear,diffusion,triggering,characteristics,deep,fluids,still,main,driving,activity,propose,background,stresses,yet,reached,critical,levels
AB值：
0.495701
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