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Changning earthquake 2019

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Journal Article

The Possibly Inducing Mechanism of the 2019 Changning Earthquake Sequence: New Evidence from Geodetic Observations

Wei Xiong, Wei Chen, Dijin Wang, Yangmao Wen, Bin Zhao, Zhaosheng Nie
Published: 07 March 2025
Seismological Research Letters (2025)
DOI: https://doi.org/10.1785/0220240410
...Wei Xiong; Wei Chen; Dijin Wang; Yangmao Wen; Bin Zhao; Zhaosheng Nie Abstract The mechanism that induced the 2019 Changning earthquake sequence is still a subject of debate. The discussion focuses on the dip angle of the seismogenic fault, which is directly associated with the intersection...
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Comprehensive seismic evidence for the inducing mechanism of extremely shallow 2019 Changning M s 6.0 earthquake by solution salt mining, Sichuan Basin, China

Uzonna Okenna Anyiam, Jiawei Qian, Yuyang Tan, Haijiang Zhang
Journal: Geology
Published: 11 March 2024
Geology (2024) 52 (6): 441–446.
DOI: https://doi.org/10.1130/G51699.1
...Uzonna Okenna Anyiam; Jiawei Qian; Yuyang Tan; Haijiang Zhang Abstract In the Changning region of the Sichuan Basin, China, which has experienced decades-long injection of freshwater for commercial salt mining, a M s 6.0 earthquake occurred in June 2019, along with four M s >5 aftershocks. Using...
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High‐Resolution Shear‐Wave Velocity Structure of the 2019 M s 6.0 Changning Earthquake Region and Its Implication for Induced Seismicity

Qiaoxia Liu, Ming Zhou, Xiaofeng Tian, Yong Qiu, Zhichao Shen, Qingdong Wang, Chongpeng Wang
Published: 08 March 2023
Seismological Research Letters (2023) 94 (3): 1392–1404.
DOI: https://doi.org/10.1785/0220220253
...Qiaoxia Liu; Ming Zhou; Xiaofeng Tian; Yong Qiu; Zhichao Shen; Qingdong Wang; Chongpeng Wang Abstract Fluid injection activities related to hydraulic fracturing (HF) and salt mining may induce moderate earthquakes. In the Changning area in southwest China, the M s 6.0 earthquake on 17 June 2019...
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Source Characteristics of the Shallow 2019 M s 6.0 Changning, China, Earthquake Sequence in the Salt Mining Area

Xiangyun Guo, Xu Zhang, Dahu Li, Lei Yi, Jun Luo
Published: 29 June 2022
Seismological Research Letters (2022) 93 (5): 2599–2611.
DOI: https://doi.org/10.1785/0220220040
...Xiangyun Guo; Xu Zhang; Dahu Li; Lei Yi; Jun Luo Abstract The 17 June 2019 M s 6.0 Changning earthquake occurred on the southern margin of the Sichuan basin in China, which breaks the historical record for the largest earthquake in the Sichuan basin. Based on the abundant local seismic, strong...
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Rupture Directivity of the 2019 M w 5.8 Changning, Sichuan, China, Earthquake and Implication for Induced Seismicity

Wei Li, Sidao Ni, Chong Zang, Risheng Chu
Published: 21 July 2020
Bulletin of the Seismological Society of America (2020) 110 (5): 2138–2153.
DOI: https://doi.org/10.1785/0120200013
...Wei Li; Sidao Ni; Chong Zang; Risheng Chu ABSTRACT On 17 June 2019, an M L 6.0 earthquake struck the Changning county in Sichuan Province of China, causing substantial casualties and property losses. The earthquake is the largest and the most damaging event in the Changning area and close to shale...
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Estimation of Source Spectra, Attenuation, and Site Responses from Strong‐Motion Data Recorded in the 2019 Changning Earthquake Sequence

Jiangyi Li, Bengang Zhou, Mianshui Rong, Su Chen, Yue Zhou
Published: 25 February 2020
Bulletin of the Seismological Society of America (2020) 110 (2): 410–426.
DOI: https://doi.org/10.1785/0120190207
... of PGA and hypocentral distance of three strike‐slip earthquakes including the 2014 M S  6.5 Ludian, the 2017 M S  7.0 Jiuzhaigou, and the 2019 M S  6.0 Changning earthquakes. At distances less than 130 km, PGA values of the three earthquakes were comparable; and at larger...
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Postseismic deformation field caused by the <span class="search-highlight">2019</span> <span class="search-highlight">Changning</span> <span class="search-highlight">earthquake</span> seque...

Postseismic deformation field caused by the 2019 Changning earthquake seque...

Published: 07 March 2025
Figure 3. Postseismic deformation field caused by the 2019 Changning earthquake sequence. (a) Postseismic deformation field derived by Sentinel‐1 data from descending orbit (T164). The blue focal mechanism plots indicate the locations and focal mechanisms of the M w > 5 events
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Possibly inducing mechanism of the <span class="search-highlight">2019</span> <span class="search-highlight">Changning</span> <span class="search-highlight">earthquake</span> sequence. (a) ...

Possibly inducing mechanism of the 2019 Changning earthquake sequence. (a) ...

Published: 07 March 2025
Figure 7. Possibly inducing mechanism of the 2019 Changning earthquake sequence. (a) Tectonic settings of the Changning anticline. The dotted line represents the geodetic‐derived seismogenic fault of the Changning earthquake in this study. The red thick line is the coseismic rupture zone
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Background information on the <span class="search-highlight">2019</span> M s  6.0 <span class="search-highlight">Changning</span> <span class="search-highlight">earthquake</span> se...

Background information on the 2019 M s  6.0 Changning earthquake se...

Published: 29 June 2022
Figure 1. Background information on the 2019 M s  6.0 Changning earthquake sequence. (a) Tectonic settings. The blue focal mechanism plots indicate the Global Centroid Moment Tensor solutions of historical M s ≥ 6.0 earthquakes since 1976 ( Ekström et al. , 2012 ). The black
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(a) The 17 June <span class="search-highlight">2019</span> M L  6.0 <span class="search-highlight">Changning</span> <span class="search-highlight">earthquake</span> (red star), seis...

(a) The 17 June 2019 M L  6.0 Changning earthquake (red star), seis...

Published: 21 July 2020
Figure 1. (a) The 17 June 2019 M L  6.0 Changning earthquake (red star), seismological stations (triangle), and geological setting. Red and black triangles denote the picked Pg and Pn stations, respectively. Black lines are major faults in this region. (b) Seismicity of Changning area
Journal Article

Nonstationary Background Seismicity Rate and Evolution of Stress Changes in the Changning Salt Mining and Shale‐Gas Hydraulic Fracturing Region, Sichuan Basin, China

Ke Jia, Shiyong Zhou, Jiancang Zhuang, Changsheng Jiang, Yicun Guo, Zhaohui Gao, Shesheng Gao, Yosihiko Ogata, Xiaodong Song
Published: 20 May 2020
Seismological Research Letters (2020) 91 (4): 2170–2181.
DOI: https://doi.org/10.1785/0220200092
...Ke Jia; Shiyong Zhou; Jiancang Zhuang; Changsheng Jiang; Yicun Guo; Zhaohui Gao; Shesheng Gao; Yosihiko Ogata; Xiaodong Song Abstract The M s 6.0 earthquake in Changning, Sichuan, China, on 17 June 2019 was the largest recorded earthquake in the stable Sichuan basin. It occurred in a complicated...
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3D Crustal Structure and Seismicity Characteristics of Changning–Xingwen Area in the Southwestern Sichuan Basin, China

Kezhen Zuo, Cuiping Zhao, Haijiang Zhang
Published: 18 August 2020
Bulletin of the Seismological Society of America (2020) 110 (5): 2154–2167.
DOI: https://doi.org/10.1785/0120200085
... the V P / V S model consistency‐constrained double‐difference seismic tomography method. The results show that crustal structures in the source area of the 2019 M s 6.0 Changning earthquake have significant variations, especially in the depth of 0–7 km. Seismic activity in the Shuanghe and Yutan...
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Interferometric Synthetic Aperture Radar (InSAR)‐derived coseismic displace...

Interferometric Synthetic Aperture Radar (InSAR)‐derived coseismic displace...

Published: 07 March 2025
Figure 2. Interferometric Synthetic Aperture Radar (InSAR)‐derived coseismic displacements caused by the 2019 Changning earthquake sequence. (a,b) Coseismic deformation field derived from Advanced Land Observing Satellite 2 (ALOS)‐2 interferograms. (c,d) Coseismic deformation field derived from
Journal Article

Seismogenic Faults of the Changning Earthquake Sequence Constrained by High‐Resolution Seismic Profiles in the Southwestern Sichuan Basin, China

Renqi Lu, Dengfa He, Jing‐Zeng Liu, Wei Tao, Hanyu Huang, Fang Xu, Guanshen Liu
Published: 28 July 2021
Seismological Research Letters (2021) 92 (6): 3757–3766.
DOI: https://doi.org/10.1785/0220200302
... and the aftershocks of the 2019 Changning earthquake sequence remains unclear. * Corresponding author: [email protected] 25 August 2020 © Seismological Society of America Human activities can trigger damaging earthquakes, and induced earthquakes have become an important topic...
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Tectonic map of the <span class="search-highlight">Changning</span> anticline. The blue focal mechanism plots rep...

Tectonic map of the Changning anticline. The blue focal mechanism plots rep...

Published: 07 March 2025
Figure 1. Tectonic map of the Changning anticline. The blue focal mechanism plots represent the locations and focal mechanisms of the M w > 5 earthquakes in the 2019 Changning earthquake sequence. The black focal mechanism plots represent the historical events (U.S. Geological
Journal Article

The December 2018 M L 5.7 and January 2019 M L 5.3 Earthquakes in South Sichuan Basin Induced by Shale Gas Hydraulic Fracturing

Xinglin Lei, Zhiwei Wang, Jinrong Su
Published: 03 April 2019
Seismological Research Letters (2019) 90 (3): 1099–1110.
DOI: https://doi.org/10.1785/0220190029
... with the front zone of the northward horizontal wells of an active shale gas pad (N201‐H24; Fig.  2 ). Based on a field survey, HF in this pad began in October 2018 and completed on 13 January 2019. After the M L  5.7 earthquake occurred, ongoing HF operations in Changning block had been paused for some...
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<span class="search-highlight">Earthquake</span> used for determination of magnitude of the shocks following the ...

Earthquake used for determination of magnitude of the shocks following the ...

Published: 17 November 2021
Figure 10. Earthquake used for determination of magnitude of the shocks following the 17 June 2019 M s  6.0 Changning earthquake. (a) The red star and circle denote the location the Changning and Yongshan–Daguan earthquakes, respectively. (b) The earthquake sequence after the 1974 M
Journal Article

NA‐GCAP: A New Full Moment Tensor Inversion Method Based on the Renewed GRTM and NA Method

Jian Wen, Feng Hu, Xiaofei Chen
Published: 23 August 2023
Seismological Research Letters (2023) 94 (6): 2775–2786.
DOI: https://doi.org/10.1785/0220220259
... the robustness of our approach through synthetic tests using a velocity model perturbed by 5% relative to the input model. Furthermore, we apply the NA‐GCAP method to the 2019 Changning earthquake sequence comprising 16 earthquakes, where twelve events exhibit double‐couple (DC) components larger than 0.95...
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Spatial background seismicity rate and modified Coulomb stress change in th...

Spatial background seismicity rate and modified Coulomb stress change in th...

Published: 20 May 2020
represent the initial state, starting time of HF activities, and the present time, respectively. The white stars indicate M ≥ 5 earthquakes. (b) Spatial Coulomb stress changes due to HF activities (before December 2018), the 2018 Xingwen and 2019 Gongxian events, and the 2019 Changning sequence
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Relocation distribution of the <span class="search-highlight">Changning</span> sequence. The relocation of earthq...

Relocation distribution of the Changning sequence. The relocation of earthq...

Published: 20 May 2020
Figure 2. Relocation distribution of the Changning sequence. The relocation of earthquakes is from Yi et al. (2019) . Colors indicate elapsed time from the Changning mainshock, and the vertical light blue bar indicates injection and pumping wells for salt mine production.