Spatial Slip Rate Distribution Along the SE Xianshuihe Fault, Eastern Tibet, and Earthquake Hazard Assessment

The Xianshuihe (XSH) fault in eastern Tibet is one of the most active faults China, with next large earthquake likely to occur along its SE part, where splits into three parallel branches: Yalahe, Selaha and Zheduotang (ZDT). Precisely quantifying their slip rates at various timescales essential evaluate regional hazard. Here, we expand our previous work on nearby ZDT Moxi (MX) faults, add observations Yalahe newly discovered Mugecuo South zone. Using tectonic-geomorphology approaches 10Be dating, had previously determined average late Quaternary 9.75 ± 0.15 4.4 0.5 mm/yr NW fault, respectively. same methods here, determine a rate 3.4–4.8 9.6–13.4 MX fault. This consistent southeastward increase proposed XSH system from 6-8 (Ganzi fault) ?10 (Selaha fault), >9.6 (MX fault). We propose new model for large-scale pull-apart basin lies within an even larger scale compressive uplift zone restraining bend highest peak located (Gongga Shan, 7,556 m). Our determination helps constrain relatively high Mw ? 7 hazard present