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Delingha earthquake 2022

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Journal Article

The 2022 Delingha, China, Earthquake Sequence and Implication for Seismic Hazard near the Western End of the Qilian–Haiyuan Fault

Wei Li, Xiaohui He, Yipeng Zhang, Yue Wang, Bin Liu, Sidao Ni, Peizhen Zhang
Published: 16 March 2023
Seismological Research Letters (2023) 94 (4): 1733–1746.
DOI: https://doi.org/10.1785/0220220345
... events in the 2022 Delingha earthquake sequence, including three M  5+ earthquakes (23 January 2022 M  5.8, referred to as E1; 25 March 2022 M  6.0, referred to as E2; 15 April 2022 M  5.4, referred to as E3), five large aftershocks, and the 20 February 2019 M  4.5 event. We collected the local...
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View PDF for article title, The <span class="search-highlight">2022</span> <span class="search-highlight">Delingha</span>, China, <span class="search-highlight">Earthquake</span> Sequence and Implication for Seismic Hazard near the Western End of the Qilian–Haiyuan Fault
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The 2022 Delingha earthquake sequence and geological setting. (a) The red stars show the epicenters of the three mainshocks. The triangles indicate the stations. The focal mechanism plots show the focal mechanisms of historical Mw 5+ earthquakes since 1976, according to the Global Centroid Moment Tensor (Global CMT). Focal mechanisms of the 1920 M 8.7 Haiyuan earthquake and the 1927 M 8.0 Gulang earthquake are from Ou et al. (2020) and Xu et al. (2010), respectively. The gray dots show the historical earthquakes (M 5+, 1970–2022) from China Earthquake Networks Center (CENC). Blue, red, black, and gray solid lines indicate the sinistral strike‐slip fault, dextral strike‐slip fault, thrust fault, and normal fault, respectively, which are modified from Yuan et al. (2013). Gray arrows with error ellipses show the Global Positioning System (GPS) velocities relative to stable Eurasia (Wang and Shen, 2020). (b) Location of our study area. (c) The relocated aftershocks (ML 1+, from 23 January to 31 May 2022). The red stars and gray dots show the relocated mainshocks and aftershocks, respectively. The red circles are the preliminary epicenters of the three mainshocks from CENC. ATF, Altyn‐Tagh fault; DHNSF, Danghe‐Nanshan fault; ELSF, Elashan fault; HLH, Halahu; HLHF, Halahu fault; KLF, Kunlun fault; QHL, Qinghai Lake; QLS, Qilian Shan fold‐thrust belt; RYSF, Riyueshan fault; SLNSF, Shule‐Nanshan fault; WQLF, West Qinling fault. The color version of this figure is available only in the electronic edition.

The 2022 Delingha earthquake sequence and geological setting. (a) The red s...

Published: 16 March 2023
Figure 1. The 2022 Delingha earthquake sequence and geological setting. (a) The red stars show the epicenters of the three mainshocks. The triangles indicate the stations. The focal mechanism plots show the focal mechanisms of historical M w  5+ earthquakes since 1976, according
Image
Simplified sketches show models for dextral strike‐slip faulting and crustal deformation in the northeastern Tibetan plateau. (a) The conjugate fault model that is assumed as the dextral strike‐slip faulting of this earthquake sequence. (b) The model of crustal deformation in the northeastern Tibetan plateau. This model combines the northward differential convergence model (Meyer et al., 1998) with the nonrigid passive bookshelf faulting model (Zuza and Yin, 2016) and is adapted from Cheng et al. (2021). The purple arrows indicate the regional right‐lateral shear motion within the Qilian Shan fold‐thrust belt caused by the northward motion of the Tibetan plateau (yellow arrow). The red star shows the location of the 2022 Delingha earthquake sequence. WHLHF, West Halahu fault. The color version of this figure is available only in the electronic edition.

Simplified sketches show models for dextral strike‐slip faulting and crusta...

Published: 16 March 2023
within the Qilian Shan fold‐thrust belt caused by the northward motion of the Tibetan plateau (yellow arrow). The red star shows the location of the 2022 Delingha earthquake sequence. WHLHF, West Halahu fault. The color version of this figure is available only in the electronic edition.
Journal Article

Tectonic inversion of an intracontinental rift basin: An example from the opening and closure of the Paleo-Tethys Ocean, northern Tibetan Plateau

Jie Li, Chen Wu, Xiaogang Li, Andrew V. Zuza, Peter J. Haproff, Yonghui Zhao, Wentao Zhao, Yahui Yue, Lin Ding
Journal: GSA Bulletin
Published: 24 May 2024
GSA Bulletin (2024) 136 (11-12): 5145–5173.
DOI: https://doi.org/10.1130/B37605.1
... ; Wu et al., 2022 , 2023a ). Although the rift-and-drift and continental accretion history is clearly evidenced by the suture zones located across Tibet, the intraplate responses to these tectonic events are poorly known and rarely quantified. The Kunlun-Qaidam-Qilian continent, located along...
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Multicyclic Phanerozoic orogeny recorded in the Qaidam continent, northern Tibet: Implications for the tectonic evolution of the Tethyan orogenic system

Chen Wu, Yonghui Zhao, Jie Li, Wenyou Liu, Andrew V. Zuza, Peter J. Haproff, Lin Ding
Journal: GSA Bulletin
Published: 30 October 2024
GSA Bulletin (2025) 137 (3-4): 1553–1581.
DOI: https://doi.org/10.1130/B37906.1
... intracontinental deformation related to the India-Asia collision (e.g., Hsü et al., 1995 ; Yin and Harrison, 2000 ; Sun et al., 2006 , 2022 ; Xiao et al., 2009 ; Song et al., 2013 , 2014a ; Wu et al., 2016 ; Zhang et al., 2019b ; Zuza et al., 2018 ; Yin et al., 2007a , 2008a , 2008b ; Yin, 2010...
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Journal Article

Large-scale topography of the north Tibetan ranges as a proxy for contrasted crustal-scale deformation modes

Marc Jolivet, Feng Cheng, Andrew V. Zuza, Zhaojie Guo, Olivier Dauteuil
Published: 04 May 2022
Journal of the Geological Society (2022) 179 (4): jgs2021-085.
DOI: https://doi.org/10.1144/jgs2021-085
... tectonic, geomorphological and thermal pattern indicators. * Correspondence: [email protected] 05 07 2021 26 01 2022 10 02 2022 © 2022 The Author(s). Published by The Geological Society of London. All rights reserved 2022 © 2022 The Author(s...
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