... that ruptured during the 1920 Haiyuan earthquake ( M = 8.7) in Ningxia and Gansu, China. The maximum displacement appears to have reached 10 m at Shikaguangou between the Salt Lake and Xianzhou basins in southern Ningxia. The average displacement along the 100 km of the fault that we studied was about 8 m...

... and when the Tibetan Plateau propagated to its present-day margins remain unclear. The Qilian Shan and Haiyuan fault, which serve as the topographic and geological boundaries of the high plateau, are key to revealing the uplift and expansion of the Tibetan Plateau. Here, we present detrital apatite (U–Th...

...Yanchuan Li; Xinjian Shan; Zhiyu Gao; Chunyan Qu Abstract The 1920 M s 8.5 Haiyuan earthquake was the largest rupture in China in the twentieth century; however, the coseismic slip characteristics that provide insight into fault kinematics and future seismic hazards are unknown. In this study, we...

..., which serve as valuable sedimentary evidence for identifying and dating of paleoearthquakes. In this study, we aimed to reconstruct the earthquake history of the Qilian–Haiyuan fault zone in the northeastern Tibetan Plateau during the Holocene. We reanalyzed forty-four trenches and used the sedimentary...

...Wei Li; Xiaohui He; Yipeng Zhang; Yue Wang; Bin Liu; Sidao Ni; Peizhen Zhang Abstract Although the Qilian–Haiyuan fault is known to be responsible for major earthquakes up to M 8, the potential of damaging earthquakes near its western end is not well understood. Since January 2022, three moderate...

... displacements of >50 cm in the line‐of‐sight InSAR observations and >1 m in the east–west POT observations. Our preferred uniform‐slip model indicates that the causative fault of this 2022 event ruptured the middle segment of the Qilian–Haiyuan fault (i.e., the LLLF) with a strike of 108.0°, a dip angle...

... from motion photogrammetry technology, to investigate the timing and size of strong paleoearthquake events in the Dashagou site near the west end of the Haiyuan fault, which ruptured in the 1920 Haiyuan earthquake. The result reveals that at least four strong paleoearthquake events with the same...

...Yanxiu Shao; Jing Liu-Zeng; Jérôme Van der Woerd; Yann Klinger; Michael E. Oskin; Jinyu Zhang; Peng Wang; Pengtao Wang; Wei Wang; Wenqian Yao Abstract To better constrain the long-term millennial slip rate of the Haiyuan fault in its central part, we revisited the site of Daqing, where...

...Xiurong Xu; Zhenguo Zhang; Feng Hu; Xiaofei Chen Abstract The Haiyuan fault is a major seismogenic fault on the northeastern edge of the Tibetan–Qinghai plateau. The 16 December 1920 M s 8.5 Haiyuan, China, earthquake is the largest and most recent event along the eastern Haiyuan fault (the Haiyuan...

...Shengxue Lei; Yanbao Li; Eric Cowgill; Kenneth L. Verosub; Shuaipo Gao; Liangxin Xu; Yongkang Ran Abstract Although Quaternary deposits within the Ganyanchi (Salt Lake) pull-apart basin along the eastern Haiyuan fault preserve a record of both the paleoenvironmental and tectonic evolution...

... of geomorphic offsets is scarce on faults that undergo both creep and coseismic rupture. In this paper, we used newly acquired high-resolution light detection and ranging (LiDAR) data to compile geomorphic offsets along the Laohu Shan section of the Haiyuan fault, in the northern Tibetan Plateau, where...

...Zhikun Ren; Zhuqi Zhang; Tao Chen; Shouliang Yan; Jinhui Yin; Peizhen Zhang; Wenjun Zheng; Huiping Zhang; Chuanyou Li Abstract We used airborne light detection and ranging (LiDAR) data to reevaluate the single-event offsets of the 1920 Haiyuan Ms 8.5 earthquake and the cumulative offsets along...

... generic characteristics of shallow creep along the Haiyuan fault, a major strike‐slip fault in China, by investigating the relationship between fault slip and geometry. We use optical images and time series of Synthetic Aperture Radar data to map the surface fault trace and the spatiotemporal distribution...

...Xiubin Lin; Hanlin Chen; Karl-Heinz Wyrwoll; Geoffrey E. Batt; Lin Liao; Jun Xiao Abstract The Haiyuan-Liupan Shan delimits the northeastern margin of the Tibetan Plateau. We present the integrated results of new stratigraphic investigations, apatite fission track analyses, and related thermal...

...Jing Liu-Zeng; Yann Klinger; Xiwei Xu; Cécile Lasserre; Guihua Chen; Wenbing Chen; Paul Tapponnier; Biao Zhang Abstract The Haiyuan fault is a major active left-lateral fault along the northeast edge of the Tibet-Qinghai Plateau. Studying this fault is important in understanding current...

...Zhang Peizhen; Peter Molnar; Zhang Weigi; Deng Qidong; Wang Yipeng; B.C. Burchfiel; Song Fangmin; L. Royden; Jiao Decheng Abstract Evidence of surface rupture has been found in trenches near Caiyuan and Shaomayin along the Haiyuan fault, where a great earthquake occurred in 1920. In addition...