Abstract
AbstractTaking the eastern boundary of the Sichuan‐Yunnan active faulted‐block in southwestern China as an example, the spatial stress distribution and potential strong‐earthquake risk have been studied based on detailed b value calculation from seismic data of the last 31 years. The main results show: (1) The spatial distribution of b values displays significant heterogeneity for various faults and fault‐segments of the eastern boundary of the Sichuan‐Yunnan active faulted‐block, which reflects the spatial difference of cumulative stress level along the boundary fault zones. (2) There are several asperities, one located at Songming on Xiaojiang main fault, one between Qiaojia and Dongchuan, and one at northwestern Songming near the main fault, two near Mianning on Anninghe fault and near Xichang on Zemuhe fault, and a large‐scale one from Daofu to Qianning on centralsouthern portion of the Xianshuihe fault. The asperities may be the potential seismogenic sources of large or strong earthquakes along the eastern‐boundary in the near future.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
