...Wen Yang; Zhifeng Ding; Jie Liu; Jia Cheng; Xuemei Zhang; Peng Wu; Qi Yao ABSTRACT The 2017 M w 6.5 Jiuzhaigou mainshock hit the northeastern end of the Bayan Har block, which has experienced many historical earthquakes, including the 1976 M 7.2 Songpan‐Pingwu earthquake swarm. We used the double...

... of complex geological structures that were formed by the compression of the Bayan Har block and South China block. The spatial–temporal seismic velocity changes define three segments on the Longmenshan faults, which are consistent with the distributions of the three subblocks of the Bayan Har block. We also...

...Shunying Hong; Mian Liu; Tai Liu; Yanfang Dong; Lize Chen; Guojie Meng; Yueren Xu ABSTRACT On 22 May 2021, an M w 7.4 earthquake struck Maduo, China, within the eastern Bayan Har block of the Tibetan plateau. The eastward‐extruding Bayan Har block is marked by active seismicity along its boundary...

... and neotectonic activities of the two faults. The ∼200-km-long Bailongjiang fault, bounding the Bayan Har block in northeast Tibet, consists of two segments. Along the western segment, late Pleistocene lacustrine-facies deposits and Holocene activities were discovered in a great fault scarp. The left-slip rate...

... on the causative faults. The Maerkang earthquake highlighted the lateral movement of deep materials and energy redistribution in the intrablock deformation of the Bayan Har block. * Corresponding author: [email protected] 11 October 2022 © Seismological Society of America KEY POINTS...

...Xiongwei Tang; Rumeng Guo; Jianqiao Xu; Yong Zheng Abstract The 2021 M w 7.4 Maduo earthquake within the Bayan Har block allows us to understand the lithospheric mechanical properties in northeastern Tibet. We analyze possible postseismic processes by modeling the six‐month postseismic deformation...

...Qi Li; Yongge Wan; Chengtao Li; He Tang; Kai Tan; Dongzhen Wang Abstract On 21 May 2021, an M w 7.4 left‐lateral strike‐slip earthquake occurred within the Bayan Har block in the Tibetan plateau. To learn about the source rupture process, we collected the teleseismic waveforms and utilized...

...Kefeng He; Yangmao Wen; Caijun Xu; Yingwen Zhao Abstract A nearly 70 yr hiatus of major seismic activity in the central eastern Bayan Har block (BKB) ended on 22 May 2021, when a multislip‐peak sinistral strike‐slip earthquake struck western Maduo County, Qinghai. This earthquake, which ruptured...

...Xu Zhang; Li‐Sheng Xu; Lei Yi; Wanpeng Feng Abstract On 8 August 2017, an M s 7.0 earthquake struck the Jiuzhaigou town, Sichuan Province, China, rupturing an unmapped fault, which is adjacent to the Maqu seismic gap in the Min Shan uplift zone in the easternmost part of the Bayan Har block. Having...

... at the north boundary of the Bayan Har block. The mechanism of the mainshock exhibited strike‐slip faulting. Relocation of the aftershock sequence revealed a south‐southeast‐striking near‐vertical plane, which is consistent with the south‐southeast nodal plane of the focal mechanism. The earthquake...