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Xiaojiang Fault

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Journal Article

Double‐Difference Tomography with a Deep Learning–Based Phase Arrival Weighting Scheme and Its Application to the Anninghe–Xiaojiang Fault Zone

Ting Yang, Lihua Fang, Jianping Wu, Stephen Monna, Weimin Xu
Published: 02 July 2024
Seismological Research Letters (2024) 95 (6): 3681–3695.
DOI: https://doi.org/10.1785/0220230362
... weighting scheme can effectively reduce the overall travel‐time residual by 7%. The weighted data were then used in the double‐difference tomography method to invert for the crustal velocity structure of the Anninghe–Xiaojiang fault zone. The resulting new model exhibits a lateral resolution of up to 0.25...
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View PDF for article title, Double‐Difference Tomography with a Deep Learning–Based Phase Arrival Weighting Scheme and Its Application to the Anninghe–<span class="search-highlight">Xiaojiang</span> <span class="search-highlight">Fault</span> Zone
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Journal Article

Machine Learning‐Based Earthquake Catalog and Tomography Characterize the Middle‐Northern Section of the Xiaojiang Fault Zone

Tian Feng, Miao Zhang, Lisheng Xu, Jianping Wu, Lihua Fang
Published: 16 June 2022
Seismological Research Letters (2022) 93 (5): 2484–2497.
DOI: https://doi.org/10.1785/0220220116
...Tian Feng; Miao Zhang; Lisheng Xu; Jianping Wu; Lihua Fang Abstract The left‐lateral strike‐slip Xiaojiang fault is an important tectonic boundary between Sichuan–Yunnan diamond block and the Yangtze block, which accommodated several M > 7.0 damaging earthquakes in the past ∼500 yr, as well...
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View PDF for article title, Machine Learning‐Based Earthquake Catalog and Tomography Characterize the Middle‐Northern Section of the <span class="search-highlight">Xiaojiang</span> <span class="search-highlight">Fault</span> Zone
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Journal Article

Latest Quaternary Active Faulting and Paleoearthquakes on the Southern Segment of the Xiaojiang Fault Zone, SE Tibetan Plateau

Peng Guo, Zhujun Han, Shaopeng Dong, Zebin Mao, Nan Hu, Fan Gao, Jiani Li
Journal: Lithosphere
Publisher: GSW
Published: 10 February 2021
Lithosphere (2021) 2021 (1): 7866379.
DOI: https://doi.org/10.2113/2021/7866379
...Peng Guo; Zhujun Han; Shaopeng Dong; Zebin Mao; Nan Hu; Fan Gao; Jiani Li Abstract The Xiaojiang fault zone (XJFZ) is an important part of the Xianshuihe-Xiaojiang fault system, acting as the eastern boundary of the Chuan-Dian block on the southeastern margin of the Tibetan Plateau...
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View PDF for article title, Latest Quaternary Active <span class="search-highlight">Faulting</span> and Paleoearthquakes on the Southern Segment of the <span class="search-highlight">Xiaojiang</span> <span class="search-highlight">Fault</span> Zone, SE Tibetan Plateau
Add to Citation Manager for Latest Quaternary Active <span class="search-highlight">Faulting</span> and Paleoearthquakes on the Southern Segment of the <span class="search-highlight">Xiaojiang</span> <span class="search-highlight">Fault</span> Zone, SE Tibetan Plateau
Journal Article

Seismic Hazard Assessment of the Mid‐Northern Segment of Xiaojiang Fault Zone in Southwestern China Using Scenario Earthquakes

Jingwei Liu, Lifang Zhang, Yi Du
Published: 17 March 2020
Bulletin of the Seismological Society of America (2020) 110 (3): 1191–1210.
DOI: https://doi.org/10.1785/0120190248
...Jingwei Liu; Lifang Zhang; Yi Du ABSTRACT Seismic hazards in the vicinity of the mid‐northern segment of the Xiaojiang fault zone were estimated from scenario earthquakes. Based on its history of earthquakes and activity data, the whole segment is considered capable of generating large earthquakes...
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View PDF for article title, Seismic Hazard Assessment of the Mid‐Northern Segment of <span class="search-highlight">Xiaojiang</span> <span class="search-highlight">Fault</span> Zone in Southwestern China Using Scenario Earthquakes
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Journal Article

Temporal Variation of Seismic‐Wave Velocity Associated with Groundwater Level Observed by a Downhole Airgun near the Xiaojiang Fault Zone

Wei Yang, Baoshan Wang, Songyong Yuan, Hongkui Ge
Published: 11 April 2018
Seismological Research Letters (2018) 89 (3): 1014–1022.
DOI: https://doi.org/10.1785/0220170282
... the source. The experiment was conducted in the east branch of the Xiaojiang fault (XJF) zone in Xundian County, Yunnan Province, China, and it lasted for one week. The relative velocity ( d v / v ) changes are measured with a precision of ∼ 2.0 × 10 − 3 . Consistent velocity variations ranging from 5% to 20...
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View PDF for article title, Temporal Variation of Seismic‐Wave Velocity Associated with Groundwater Level Observed by a Downhole Airgun near the <span class="search-highlight">Xiaojiang</span> <span class="search-highlight">Fault</span> Zone
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Book Chapter

Late Cenozoic Xianshuihe-Xiaojiang, Red River, and Dali Fault Systems of Southwestern Sichuan and Central Yunnan, China

Author(s)
E. Wang, B. C. Burchfiel, L. H. Royden, Liangzhong Chen, Jishen Chen, Wenxin Li, Zhiliang Chen
Book: Late Cenozoic Xianshuihe-Xiaojiang, Red River, and Dali Fault Systems of Southwestern Sichuan
Series: GSA Special Papers
Publisher: Geological Society of America
Published: 01 January 1998
DOI: 10.1130/0-8137-2327-2.1
Abstract
View PDF for content titled, Late Cenozoic Xianshuihe-<span class="search-highlight">Xiaojiang</span>, Red River, and Dali <span class="search-highlight">Fault</span> Systems of Southwestern Sichuan and Central Yunnan, China
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Book

Late Cenozoic Xianshuihe-Xiaojiang, Red River, and Dali Fault Systems of Southwestern Sichuan

Author(s)
Erchie Wang, B.C. Burchfiel, L.H. Royden, Chen Liangzhong, Chen Jishen, Li Wenxin, Chen Zhiliang
Series: GSA Special Papers
Publisher: Geological Society of America
Published: 01 January 1998
DOI: 10.1130/SPE327
Add to Citation Manager for Late Cenozoic Xianshuihe-<span class="search-highlight">Xiaojiang</span>, Red River, and Dali <span class="search-highlight">Fault</span> Systems of Southwestern Sichuan and Central Yunnan, China
Image
Fault rupture scenarios for the mid‐northern segment of the Xiaojiang fault zone. S1, Qiaojia–Menggu segment; S2, Menggu–Awang segment; S3, Gongshan–Xiaoxinjie segment; S4, Xiaoxinjie–Xujiadu segment; S5, east Yiliang segment; S6, Daduo–Cangxi segment; and S7, Cangxi–Chengjiang segment.

Fault rupture scenarios for the mid‐northern segment of the Xiaojiang fault...

Published: 17 March 2020
Figure 4. Fault rupture scenarios for the mid‐northern segment of the Xiaojiang fault zone. S1, Qiaojia–Menggu segment; S2, Menggu–Awang segment; S3, Gongshan–Xiaoxinjie segment; S4, Xiaoxinjie–Xujiadu segment; S5, east Yiliang segment; S6, Daduo–Cangxi segment; and S7, Cangxi–Chengjiang segment.
Image
(a) Map view of the entire Xiaojiang fault. The blue stars mark M ≥ 6.5 historical large earthquakes. The double purple circles show the locations of cities. The magenta lines denote the entire Xiaojiang fault, and the black lines represent other faults. DLSF, Daliangshan fault; HHF, Honghe fault; LFF, Lianfeng fault; PDHF, Puduhe fault; XJF, Xiaojiang fault; ZMHF, Zemuhe fault; and ZTF, Zhaotong fault. The background is colored by topography, and the color bar is shown on the left of the figure. The range bounded by three pairs of the black arrows at the top of panel (a) denotes the northern, middle, and southern section of the Xiaojiang fault zone, respectively, from left to right. The range bounded by the red arrows denotes the middle‐northern section of the Xiaojiang fault zone, which is shown in panel (b). (b) Map view of the study region. The red circles denote earthquakes obtained by machine learning‐based earthquake location workflow (LOC‐FLOW) and further relocated by tomoDD (from November 2019 to November 2020), and crosses denote inversion grids for the 3D velocity model. The green stars show the epicenters of the three largest earthquakes (the 15 January 2020 ML 4.4 Xundian earthquake, the 18 May 2020 ML 5.1 Qiaojia earthquake, and the 8 July 2020 ML 4.6 Dongchuan earthquake) during our study period. The light blue triangles represent the distribution of the Qiaojia temporary seismic array, and the black triangles represent permanent stations. The inset shows regional map of southeast Asia, with the blue rectangle indicating the study region (panel b). SB, Sichuan basin; SGB, Songpan–Ganzi block; SYDB, Sichuan–Yunnan diamond block; and YZB, Yangtze block. The color version of this figure is available only in the electronic edition.

(a) Map view of the entire Xiaojiang fault. The blue stars mark M ≥ 6.5 h...

Published: 16 June 2022
Figure 1. (a) Map view of the entire Xiaojiang fault. The blue stars mark M ≥ 6.5 historical large earthquakes. The double purple circles show the locations of cities. The magenta lines denote the entire Xiaojiang fault, and the black lines represent other faults. DLSF, Daliangshan fault; HHF
Image
(a) A map of the study region surrounding the Xiaojiang fault (XJF). The red solid square denotes the experimental site, which is further enlarged in (b). The black solid lines denote the faults in the region, and the black solid circles denote the epicenters of historical earthquakes. Cities are labeled with circled solid dots. I, South China block; II, Tibetan subblock. (Inset) A larger map of the study region. (b) The detailed distribution of the wells (the hollow circles), the seismic stations (the solid triangles), and the fault zone (the gray band). (c) The vertical seismic profile velocity imaging with long offsets at the east branch of the XJF (from Gang Hu) and the drill hole columnar section of Wells ZK1, ZK3, and ZK4.

(a) A map of the study region surrounding the Xiaojiang fault (XJF). The re...

Published: 11 April 2018
Figure 1. (a) A map of the study region surrounding the Xiaojiang fault (XJF). The red solid square denotes the experimental site, which is further enlarged in (b). The black solid lines denote the faults in the region, and the black solid circles denote the epicenters of historical earthquakes
Journal Article

Late Cenozoic to Holocene deformation in southwestern Sichuan and adjacent Yunnan, China, and its role in formation of the southeastern part of the Tibetan Plateau

Erchie Wang, B. Clark Burchfiel
Journal: GSA Bulletin
Published: 01 March 2000
GSA Bulletin (2000) 112 (3): 413–423.
DOI: https://doi.org/10.1130/0016-7606(2000)112<413:LCTHDI>2.0.CO;2
...Erchie Wang; B. Clark Burchfiel Abstract From at least 2–4 Ma to present, crust in the southeastern part of the Tibetan Plateau west of the convex-east Xianshuihe-Xiaojiang fault system has deformed internally and rotated clockwise around the eastern Himalayan syntaxis. The northwest-striking Ganzi...
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View PDF for article title, Late Cenozoic to Holocene deformation in southwestern Sichuan and adjacent Yunnan, China, and its role in formation of the southeastern part of the Tibetan Plateau
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Seismotectonic setting and distribution map of the Jianshui fault in the southern segment of the Xiaojiang fault zone. (a) Main active faults and large earthquakes with magnitudes of ≥7.0 in the study area. Fault locations and slip senses are simplified from Xu et al. [21]. Red lines represent the Xianshuihe-Xiaojiang left-lateral strike-slip fault system. The rectangular box represents the location of the Jianshui fault. Earthquake locations and magnitudes are from the China Earthquake Information Network. GPS velocity field relative to stable Eurasia is from Liang et al. [22]. Abbreviations: GZF = Ganzi fault; XSHF = Xianshuihe fault; ANHF = Anninghe fault; ZMHF = Zemuhe fault; DLSF = Daliangshan fault; N-XJF = northern segment of the Xiaojiang fault; C-XJF = central segment of the Xiaojiang fault; S-XJF = southern segment of the Xiaojiang fault; JSF = Jianshui fault; QJF = Qujiang fault; SPF=Shiping fault; RRF = Red River fault; DBFF = Dien Bien Phu fault; NTHF = Nantinghe fault; LJ-XJHF = Lijiang-Xiaojinhe fault; JSJF = Jinshajiang fault; LTF = Litang fault; LMSF = Longmenshan fault. (b) Google Earth optical image showing the clear linear features of the Jianshui fault. Red arrows represent the location of the fault. (c) Distribution map of the Jianshui fault. The hillshade map is generated from the ASTGTM DEM (30 m resolution).

Seismotectonic setting and distribution map of the Jianshui fault in the so...

Published: 10 February 2021
Figure 1 Seismotectonic setting and distribution map of the Jianshui fault in the southern segment of the Xiaojiang fault zone. (a) Main active faults and large earthquakes with magnitudes of ≥7.0 in the study area. Fault locations and slip senses are simplified from Xu et al. [ 21 ]. Red lines
Journal Article

Miocene to present activity along the Red River fault, China, in the context of continental extrusion, upper-crustal rotation, and lower-crustal flow

Lindsay M. Schoenbohm, B. Clark Burchfiel, Chen Liangzhong, Yin Jiyun
Journal: GSA Bulletin
Published: 01 May 2006
GSA Bulletin (2006) 118 (5-6): 672–688.
DOI: https://doi.org/10.1130/B25816.1
...-Xiaojiang fault system, which deflects but does not cut the Red River fault. The distributed nature of the Xianshuihe-Xiaojiang fault system as it approaches the Red River fault is important for accommodating shearing across the strong crustal anisotropy formed by the Red River fault and Ailao Shan shear...
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View PDF for article title, Miocene to present activity along the Red River <span class="search-highlight">fault</span>, China, in the context of continental extrusion, upper-crustal rotation, and lower-crustal flow
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Journal Article

Geodetic measurement of crustal motion in southwest China

Robert W. King, Feng Shen, B. Clark Burchfiel, Leigh H. Royden, Erchie Wang, Zhiliang Chen, Yuping Liu, Xuan-Yang Zhang, Ji-Xiang Zhao, Yulin Li
Journal: Geology
Published: 01 February 1997
Geology (1997) 25 (2): 179–182.
DOI: https://doi.org/10.1130/0091-7613(1997)025<0179:GMOCMI>2.3.CO;2
...Robert W. King; Feng Shen; B. Clark Burchfiel; Leigh H. Royden; Erchie Wang; Zhiliang Chen; Yuping Liu; Xuan-Yang Zhang; Ji-Xiang Zhao; Yulin Li Abstract Global Positioning System measurements performed over a 2–4 yr period confirm the Xianshuihe-Xiaojiang fault system as one of the primary active...
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Earth models used in this study. (a) The WYUN model for the region to the west of the Sagaing fault. (b) CYUN is the initial model for the region between the Xianshuihe–Xiaojiang fault and Sagaing fault, which includes the Sichuan–Yunnan rhombic block and Indochina. (c) The CUS model is used for the events at the east of the Xianshuihe–Xiaojiang fault system.

Earth models used in this study. (a) The WYUN model for the region to the w...

Published: 01 November 2010
Figure 2. Earth models used in this study. (a) The WYUN model for the region to the west of the Sagaing fault. (b) CYUN is the initial model for the region between the Xianshuihe–Xiaojiang fault and Sagaing fault, which includes the Sichuan–Yunnan rhombic block and Indochina. (c) The CUS model
Journal Article

Real‐Time Local Shear‐Wave Splitting Measurement: Application to the Vicinity of the Baihetan Hydropower Plant

Xuefei Han, Zefeng Li, Feng Liu, Junlun Li, Huajian Yao
Published: 03 January 2025
Bulletin of the Seismological Society of America (2025) 115 (2): 505–515.
DOI: https://doi.org/10.1785/0120240066
... on the reliability and interpretability of the automated measurements. Most fast‐wave polarization directions align with the regional maximum horizontal stress and the nearby fault trends, generally consistent with previous observations. Five stations near the Zemuhe and Xiaojiang faults show a nearly 90° flip...
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Image
Seventy-nine focal mechanisms of small-to-moderate size events in the Yunnan and Sichuan regions. Dark gray triangles are the 25 temporary seismic stations. Four major fault systems are labeled: SF, right-lateral Sagaing fault; RRF, right-lateral Red River fault; XSH–XJF, left-lateral Xianshuihe–Xiaojiang fault; LMS, thrust Longmen Shan fault. SYR stands for the Sichuan–Yunnan rhombic block bounded by the Red River fault and the Xianshuihe–Xiaojiang fault. EHS represents the East Himalayan syntaxis. The inset shows the location of the study area with regional estimated surface motion direction (black arrows) (Royden et al., 2008).

Seventy-nine focal mechanisms of small-to-moderate size events in the Yunna...

Published: 01 November 2010
Xianshuihe–Xiaojiang fault; LMS, thrust Longmen Shan fault. SYR stands for the Sichuan–Yunnan rhombic block bounded by the Red River fault and the Xianshuihe–Xiaojiang fault. EHS represents the East Himalayan syntaxis. The inset shows the location of the study area with regional estimated surface motion
Journal Article

High‐Resolution 3D Q P and Q S Models of the Middle Eastern Boundary of the Sichuan–Yunnan Rhombic Block: New Insight into Implication for Seismogenesis

Mengqiao Duan, Lianqing Zhou, Cuiping Zhao, Zhaofei Liu, Xiaodong Zhang
Published: 10 January 2024
Seismological Research Letters (2024) 95 (3): 1759–1775.
DOI: https://doi.org/10.1785/0220230232
... high‐resolution velocity and resistivity models and geochemical observation results, we can comprehensively understand the medium structure and the seismogenesis in the study area. The results show that the high‐attenuation characteristics in the shallow layer of the Xiaojiang fault zone and the Zemuhe...
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Journal Article

3D V P , V S , and V P / V S Structures and Seismicity of the Lower Reaches of the Jinsha River, China

Kezhen Zuo, Hongfu Lei, Ce Zhao, Cuiping Zhao, Haijiang Zhang
Published: 10 July 2023
Seismological Research Letters (2023) 94 (5): 2384–2396.
DOI: https://doi.org/10.1785/0220230039
... and high V P / V S at depths ranging from 3 to 10 km beneath the Qiaojia area along the Xiaojiang fault (XJF), which suggests that the seismic activity in this area may increase with the storage of the BHT dam in April 2021. * Corresponding author: [email protected] 11 February 2023 ©...
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Journal Article

Preliminary Report on the 18 May 2020 M s 5.0 Qiaojia Earthquake, Yunnan, China

Zhen Fu, Changsheng Jiang, Fengling Yin, Lei Zhang, Xuanye Shen, Lihua Fang, Chunlai Li, Xu Zhang, Lisheng Xu
Published: 03 March 2021
Seismological Research Letters (2021) 92 (4): 2122–2133.
DOI: https://doi.org/10.1785/0220200233
... recorded by dense local seismic stations of the Qiaojia array constructed near the Xiaojiang fault zone. The focal mechanism of the mainshock exhibited strike‐slip motion with a centroid depth of 8 km. We determined the seismogenic fault of the Qiaojia earthquake using aftershock relocation with local...
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