Details of the Abstract
| Title of paper | Magnetotelluric evidence for crustal heterogeneity controlling earthquake ruptures along the Muji Fault, Northeastern Pamir Orogen |
| List of authors | Yuanzhi Cheng, Yanlong Kong, Zhongxing Wang |
| Affiliation(s) | Institute of Geology and Geophysics, Chinese Academy of Sciences |
| Summary | The occurrence of earthquakes is not solely dictated by fault geometry and stress accumulation; it is also intricately linked to the structure of the surrounding medium, with resistivity being a key parameter. On November 25, 2016, a magnitude 6.6 shallow earthquake ruptured the Muji fault in western Xinjiang, China. To better understand the seismogenic structure and rupture process of the Muji earthquake, we investigated the crustal structure using the 59 MT sites. The model reveals a strong correlation between resistivity interfaces and seismic source locations, reflecting the accumulation and uneven distribution of stress along the fault. The spatial distribution of slip during the Muji earthquake shows a strong correlation with high resistivity anomalies, indicating that the heterogeneity of the fault interface controls the earthquake rupture process. |
| Session Keyword | 4.0 Tectonics and geodynamics, including magmatism |
| File upload |
4.0_magnetotelluric_evidence_yuanzhi.pdf
4P37.pdf |