1-20 OF 153 RESULTS FOR

Anninghe Fault

Results shown limited to content with bounding coordinates.
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Journal Article

High‐Resolution Shallow Structure along the Anninghe Fault Zone, Sichuan, China, Constrained by Active Source Tomography

Xinru Mu, Junhao Song, Hongfeng Yang, Jianping Huang, Huajian Yao, Baofeng Tian
Published: 10 October 2023
Seismological Research Letters (2024) 95 (1): 408–420.
DOI: https://doi.org/10.1785/0220230137
...Xinru Mu; Junhao Song; Hongfeng Yang; Jianping Huang; Huajian Yao; Baofeng Tian Abstract The Anninghe fault (ANHF), located in southwest China, was a major block boundary that hosted M 7.5 earthquakes historically. For seismic hazard assessment, it is critical to investigate fault properties before...
FIGURES | View All (10)
View PDF for article title, High‐Resolution Shallow Structure along the <span class="search-highlight">Anninghe</span> <span class="search-highlight">Fault</span> Zone, Sichuan, China, Constrained by Active Source Tomography
Purchase
Add to Citation Manager for High‐Resolution Shallow Structure along the <span class="search-highlight">Anninghe</span> <span class="search-highlight">Fault</span> Zone, Sichuan, China, Constrained by Active Source Tomography
Includes: Supplemental Content
Journal Article

Landslide Susceptibility Mapping along the Anninghe Fault Zone in China using SVM and ACO-PSO-SVM Models

Zhuo Chen, Hongfu Zhou, Fei Ye, Bin Liu, Wenxi Fu
Journal: Lithosphere
Publisher: GSW
Published: 04 July 2022
Lithosphere (2022) 2022 (1): 5216125.
DOI: https://doi.org/10.2113/2022/5216125
... susceptibility of the Anninghe fault zone in Sichuan Province, China. Based on this, 12 conditioning factors associated with landslides were considered, namely, altitude, slope angle, cutting depth, slope aspect, relief amplitude, stream power index (SPI), gully density, lithology, rainfall, road density...
FIGURES | View All (12)
View PDF for article title, Landslide Susceptibility Mapping along the <span class="search-highlight">Anninghe</span> <span class="search-highlight">Fault</span> Zone in China using SVM and ACO-PSO-SVM Models
Add to Citation Manager for Landslide Susceptibility Mapping along the <span class="search-highlight">Anninghe</span> <span class="search-highlight">Fault</span> Zone in China using SVM and ACO-PSO-SVM Models
Journal Article

Foreshocks of the 2018 M L 4.0 Shimian Earthquake in the Anninghe Fault and Its Implications for Earthquake Nucleation

Tian Feng, Jianping Wu, Lihua Fang, Xiangyun Guo, Yan Cai, Weilai Wang
Published: 13 January 2021
Seismological Research Letters (2021) 92 (3): 1937–1949.
DOI: https://doi.org/10.1785/0220200332
... approximately three times more events than reported in a local catalog. The augmented seismicity suggests the existence of a blind small strike‐slip fault deep in the east of the Anninghe fault. Forty‐one foreshocks of magnitude ranging from M L − 0.7 to 3.4 occurred within 4 hr before the mainshock and did...
FIGURES | View All (7)
View PDF for article title, Foreshocks of the 2018 M L 4.0 Shimian Earthquake in the <span class="search-highlight">Anninghe</span> <span class="search-highlight">Fault</span> and Its Implications for Earthquake Nucleation
Purchase
Add to Citation Manager for Foreshocks of the 2018 M L 4.0 Shimian Earthquake in the <span class="search-highlight">Anninghe</span> <span class="search-highlight">Fault</span> and Its Implications for Earthquake Nucleation
Includes: Supplemental Content
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...
FIGURES | View All (10)
View PDF for article title, Double‐Difference Tomography with a Deep Learning–Based Phase Arrival Weighting Scheme and Its Application to the <span class="search-highlight">Anninghe</span>–Xiaojiang <span class="search-highlight">Fault</span> Zone
Purchase
Add to Citation Manager for Double‐Difference Tomography with a Deep Learning–Based Phase Arrival Weighting Scheme and Its Application to the <span class="search-highlight">Anninghe</span>–Xiaojiang <span class="search-highlight">Fault</span> Zone
Includes: Supplemental Content
Image
(a) Map view of the Xianshuihe and Anninghe fault surfaces with the different clusters of hypocenters used in the modeling (hypocenter locations from the China Seismologic Network and Zhu et al., 2005). (b) 3D view of the modeled faults showing the focal mechanisms used as constraints (focal mechanisms from GMT catalog, Allen et al., 1991; Papadimitriou et al., 2004; Yang et al., 2005; Wen et al., 2008; and Kirby et al., 2000). Plunges represent the hypocenter clusters used to constraint the stage II faults and in the Anninghe case; dots are used for the stage III faults. SB, Sichuan basin.

(a) Map view of the Xianshuihe and Anninghe fault surfaces with the differe...

Published: 01 March 2017
Figure 7. (a) Map view of the Xianshuihe and Anninghe fault surfaces with the different clusters of hypocenters used in the modeling (hypocenter locations from the China Seismologic Network and Zhu et al. , 2005 ). (b) 3D view of the modeled faults showing the focal mechanisms used
Image

Parameters for the Xianshuihe and Anninghe Faults Geometric...

Published: 12 April 2016
Table 2 Parameters for the Xianshuihe and Anninghe Faults Geometric Parameters Mechanical Parameters Fault Name Strike Dip ρ kg/m 3 V P (m/s) V S (m/s) c (MPa) Xianshuihe 330° 90° 2500 900 500 0.43 0.15 Anninghe 330° 80° 2500 900
Image

Parameters for the Xianshuihe and Anninghe Faults Geometric...

Published: 12 April 2016
Table 2 Parameters for the Xianshuihe and Anninghe Faults Geometric Parameters Mechanical Parameters Fault Name Strike Dip ρ kg/m 3 V P (m/s) V S (m/s) c (MPa) Xianshuihe 330° 90° 2500 900 500 0.43 0.15 Anninghe 330° 80° 2500 900
Journal Article

Slip Model of the 2022 M w 6.6 Luding Earthquake from Inversion of GNSS and InSAR with Sentinel‐1

Rong Zou, Junxiang Wang, Xinyu Zhao, Zhiwei Fang, Kejie Chen, Rongxin Fang, Qi Wang
Published: 30 January 2024
Seismological Research Letters (2024) 95 (3): 1599–1609.
DOI: https://doi.org/10.1785/0220230113
..., which is consistent with the estimated locking depth. Based on the Coulomb stress analysis and considering the strong locking state of the Anninghe fault, more attention should be paid to the possibility of earthquakes in the Anninghe fault. Figure 1. (a) Map of topographic relief, earthquakes...
FIGURES | View All (5)
View PDF for article title, Slip Model of the 2022 M w 6.6 Luding Earthquake from Inversion of GNSS and InSAR with Sentinel‐1
Purchase
Add to Citation Manager for Slip Model of the 2022 M w 6.6 Luding Earthquake from Inversion of GNSS and InSAR with Sentinel‐1
Includes: Supplemental Content
Image
A tectonic model for interpreting decreasing rates of valley incision at c. 10 Ma in the study area. (a) Topographic and neotectonic map of the study area and adjacent areas. The dashed line depicts the southern extension of the Anninghe Fault. (b) Topographic swath across the study area and the two bounding faults (the southern extension of the Anninghe fault to the west and the Zemuhe Fault to the east). The location of the swath is marked by the rectangle in (a). The vertical line denotes the active Zemuhe Fault; the dashed line shows the southern extension of the Anninghe Fault. (c) A model for interpreting the declining denudation rates in the western Luoji Shan. Prior to c. 10 Ma, both bounding faults accommodated significant amounts of transpressional deformation. However, the southern extension of the Anninghe Fault became weakened after c. 10 Ma, as inferred from the low denudation rate at the western flank of the Luoji Shan. Deep geometries of the faults are constrained by high-resolution seismic refraction data reported by Wang et al. (2008a).

A tectonic model for interpreting decreasing rates of valley incision at c...

Published: 15 May 2017
Fig. 6. A tectonic model for interpreting decreasing rates of valley incision at c. 10 Ma in the study area. ( a ) Topographic and neotectonic map of the study area and adjacent areas. The dashed line depicts the southern extension of the Anninghe Fault. ( b ) Topographic swath across the study
Image
Distribution of the Xichang array and all repeating earthquakes near the Anninghe fault. The red circles denote repeating earthquakes. Blue triangles denote seismic stations used in detecting repeating earthquakes. Gray circles denote the 2013–2019 background earthquakes. F1, Xianshuihe fault; F2, Wenchuan‐maowen fault; F3, Daliangshan fault; F4, Anninghe fault; F5, Zemuhe fault; F6, Lijiang‐Xiaojinhe fault. The color version of this figure is available only in the electronic edition.

Distribution of the Xichang array and all repeating earthquakes near the An...

Published: 25 January 2023
Figure 2. Distribution of the Xichang array and all repeating earthquakes near the Anninghe fault. The red circles denote repeating earthquakes. Blue triangles denote seismic stations used in detecting repeating earthquakes. Gray circles denote the 2013–2019 background earthquakes. F1, Xianshuihe
Image
Hypocentral distribution at the different stages, and cluster threshold for next stage modeling. (a) Distance from stage II modeled Xianshuihe fault. No second mode is observable. (b) Distance from stage II modeled Anninghe fault; two modes are observable. (c) Distance from stage III modeled Anninghe fault produced after removal of the second mode.

Hypocentral distribution at the different stages, and cluster threshold for...

Published: 01 March 2017
Figure 8. Hypocentral distribution at the different stages, and cluster threshold for next stage modeling. (a) Distance from stage II modeled Xianshuihe fault. No second mode is observable. (b) Distance from stage II modeled Anninghe fault; two modes are observable. (c) Distance from stage III
Image
Coulomb stress changes due to (a) the 2014 Ms 6.3 Kangding and (b) Luding earthquake on neighboring faults. The northern and southern stars in panel (a) indicate the mainshocks of the Kangding and Luding earthquake, respectively. The open ellipse in panel (b) indicates the surface rupture of the last large earthquake in the Anninghe fault. Abbreviations: ANHF, Anninghe fault; DLSF, Daliangshan fault; HHHZF, Hehehaizi fault; JPSF, Jinpingshan fault; LMSF, Longmenshan fault; XSHF, Xianshuihe fault; and YLXF, Yulongxi fault. The color version of this figure is available only in the electronic edition.

Coulomb stress changes due to (a) the 2014 M s  6.3 Kangding and (b...

Published: 05 June 2023
the surface rupture of the last large earthquake in the Anninghe fault. Abbreviations: ANHF, Anninghe fault; DLSF, Daliangshan fault; HHHZF, Hehehaizi fault; JPSF, Jinpingshan fault; LMSF, Longmenshan fault; XSHF, Xianshuihe fault; and YLXF, Yulongxi fault. The color version of this figure is available only
Image
Geological features of a set of cataclastic rocks distributed along the Anninghe fault. (a) Along the Anninghe fault, the right-lateral oblique-slip shear zone was covered by a set of cataclastic rocks showing a distinct earth forest landform. Above the cataclastic rocks, the Xigeda lacustrine strata displays horizontal strata, indicating an unconformity between them. (b) Oriented arrangement of angular quartz in the microstructure of the cataclastic rocks, showing cataclastic flow. (c) The cataclastic flow showing an asymmetrical rotated porphyroclast.

Geological features of a set of cataclastic rocks distributed along the Ann...

Published: 22 August 2024
Fig. 10. Geological features of a set of cataclastic rocks distributed along the Anninghe fault. ( a ) Along the Anninghe fault, the right-lateral oblique-slip shear zone was covered by a set of cataclastic rocks showing a distinct earth forest landform. Above the cataclastic rocks, the Xigeda
Journal Article

Late Cenozoic exhumation history of the Luoji Shan in the southeastern Tibetan Plateau: insights from apatite fission-track thermochronology

Hu Wang, Yuntao Tian, Mingjian Liang
Published: 15 May 2017
Journal of the Geological Society (2017) 174 (5): 883–891.
DOI: https://doi.org/10.1144/jgs2017-005
...Fig. 6. A tectonic model for interpreting decreasing rates of valley incision at c. 10 Ma in the study area. ( a ) Topographic and neotectonic map of the study area and adjacent areas. The dashed line depicts the southern extension of the Anninghe Fault. ( b ) Topographic swath across the study...
FIGURES | View All (6)
View PDF for article title, Late Cenozoic exhumation history of the Luoji Shan in the southeastern Tibetan Plateau: insights from apatite fission-track thermochronology
Purchase
Add to Citation Manager for Late Cenozoic exhumation history of the Luoji Shan in the southeastern Tibetan Plateau: insights from apatite fission-track thermochronology
Journal Article

Catalog Replenishment Based on Statistical Method for Strong Earthquakes in the Triple Junction Area, Eastern Tibet

Mengyi Wei, Jing Wu, Xinyu Gao
Published: 30 December 2024
Seismological Research Letters (2024)
DOI: https://doi.org/10.1785/0220240215
...Mengyi Wei; Jing Wu; Xinyu Gao Abstract The triple junction area, bordered by the Longmenshan, Xianshuihe, and Anninghe faults, is located at the southeastern corner of Songpan–Ganzi block, northern Tibet. In this area, a series of strong earthquakes occurred, including the 2008 M w 7.9 Wenchuan...
FIGURES | View All (10)
View PDF for article title, Catalog Replenishment Based on Statistical Method for Strong Earthquakes in the Triple Junction Area, Eastern Tibet
Purchase
Add to Citation Manager for Catalog Replenishment Based on Statistical Method for Strong Earthquakes in the Triple Junction Area, Eastern Tibet
Early Publication
Journal Article

2022 M w 6.6 Luding, China, Earthquake: A Strong Continental Event Illuminating the Moxi Seismic Gap

Long Zhang, Yijian Zhou, Xu Zhang, Aiyu Zhu, Bo Li, Shiguang Wang, Shanshan Liang, Ce Jiang, Jianping Wu, Yuexin Li, Jinrong Su, Lijun Yan, Lihua Fang
Published: 05 June 2023
Seismological Research Letters (2023) 94 (5): 2129–2142.
DOI: https://doi.org/10.1785/0220220383
... the surface rupture of the last large earthquake in the Anninghe fault. Abbreviations: ANHF, Anninghe fault; DLSF, Daliangshan fault; HHHZF, Hehehaizi fault; JPSF, Jinpingshan fault; LMSF, Longmenshan fault; XSHF, Xianshuihe fault; and YLXF, Yulongxi fault. The color version of this figure is available only...
FIGURES | View All (7)
View PDF for article title, 2022 M w 6.6 Luding, China, Earthquake: A Strong Continental Event Illuminating the Moxi Seismic Gap
Purchase
Add to Citation Manager for 2022 M w 6.6 Luding, China, Earthquake: A Strong Continental Event Illuminating the Moxi Seismic Gap
Includes: Supplemental Content
Journal Article

Asymmetric Bilateral Rupture of the 2022 M s 6.8 Luding Earthquake on a Continental Transform Fault, Tibetan Border, China

Yijun Zhang, Rumeng Guo, Heping Sun, Dechuan Liu, Jiří Zahradník
Published: 28 July 2023
Seismological Research Letters (2023) 94 (5): 2143–2153.
DOI: https://doi.org/10.1785/0220220387
...% of the seismic moment is released at shallow depths <12 km thus explaining significant damaging effects. Furthermore, the seismic potential of the remaining locked portions of the XSH and Anninghe faults is still high and positive increases of the Coulomb stress on these faults due to the Luding earthquake...
FIGURES | View All (4)
View PDF for article title, Asymmetric Bilateral Rupture of the 2022 M s 6.8 Luding Earthquake on a Continental Transform <span class="search-highlight">Fault</span>, Tibetan Border, China
Purchase
Add to Citation Manager for Asymmetric Bilateral Rupture of the 2022 M s 6.8 Luding Earthquake on a Continental Transform <span class="search-highlight">Fault</span>, Tibetan Border, China
Includes: Supplemental Content
Image
(a–d) Maps for four historical periods of damaged areas for 36 M ≥6 earthquakes along the Xianshuihe–Anninghe fault system (modified from Wen, Fan, et al., 2008). The red lines correspond to the Xianshuihe–Anninghe fault system. The hollow circles indicate towns near the fault. The gray ellipses show the damaged areas for every earthquake together with the earthquake date and magnitude proposed by Wen, Fan, et al. (2008) and Yi et al. (2015). The red ellipse shows the damaged areas of the 2022 Ms 6.8 Luding earthquake proposed by Zhang, Zhang, et al. (2022). (e) The red, yellow, green, and blue lines correspond to the coupling coefficients in 5, 10, 15, 20 km depth, respectively, from Li, Nocquet, et al. (2021). (f) Static Coulomb failure stress changes induced by the mainshock on nearby faults. (g) Map of the Xianshuihe‐Anninghe Fault system trending. The red star marks the epicenter of the 2022 Ms 6.8 Luding earthquake. (h) Spatial and temporal distribution of historically strong earthquake rupture since 1327. The red lines correspond to rupture length in latitude. The green dashed boxes correspond to seismic gaps. (i–k) Static Coulomb failure stress change based on the slip model of this article and three different receiver‐fault mechanisms based on the three aftershock clusters (An et al., 2023). The CFS is resolved at the depth of 10 km using the effective friction coefficient of 0.4. The green circles are aftershocks within the depth range of 8–12 km. Fault acronyms: LMS, Longmenshan; XSH, Xianshuihe.

(a–d) Maps for four historical periods of damaged areas for 36 M ≥6 earthqu...

Published: 28 July 2023
Figure 4. (a–d) Maps for four historical periods of damaged areas for 36 M ≥6 earthquakes along the Xianshuihe–Anninghe fault system (modified from Wen, Fan, et al. , 2008 ). The red lines correspond to the Xianshuihe–Anninghe fault system. The hollow circles indicate towns near the fault
Journal Article

Reevaluation of Coseismic Surface Ruptures Produced by the 1850 M 7.5 Xichang Earthquake on the Southeastern Margin of the Tibetan Plateau and Implications for Rupture Propagation at Bends on Strike‐Slip Faults

Hu Wang, Mingjian Liang, Shuaipo Gao, Yongkang Ran, Lichun Chen
Published: 09 January 2018
Bulletin of the Seismological Society of America (2018) 108 (1): 101–115.
DOI: https://doi.org/10.1785/0120170202
... with historical earthquakes are needed. Here, we reevaluate surface ruptures produced by the A.D. 1850 Xichang earthquake to determine the coseismic rupture length and slip distribution at an extensional fault bend of about 30°. The fault bend is located at the intersection between the Anninghe fault (ANHF...
FIGURES | View All (14)
View PDF for article title, Reevaluation of Coseismic Surface Ruptures Produced by the 1850 M 7.5 Xichang Earthquake on the Southeastern Margin of the Tibetan Plateau and Implications for Rupture Propagation at Bends on Strike‐Slip <span class="search-highlight">Faults</span>
Purchase
Add to Citation Manager for Reevaluation of Coseismic Surface Ruptures Produced by the 1850 M 7.5 Xichang Earthquake on the Southeastern Margin of the Tibetan Plateau and Implications for Rupture Propagation at Bends on Strike‐Slip <span class="search-highlight">Faults</span>
Journal Article

GNSS for Quasi‐Real‐Time Earthquake Source Determination in Eastern Tibet: A Prototype System toward Early Warning Applications

Xinjian Shan, Yanchuan Li, Zhenjie Wang, Hao Yin, Xiaodong Liu, Yunhua Liu, Guohong Zhang, Yingfeng Zhang, Chunyan Qu
Published: 28 April 2021
Seismological Research Letters (2021) 92 (5): 2988–2997.
DOI: https://doi.org/10.1785/0220190244
... earthquake, and 2200 synthetic earthquakes with moment magnitudes ranging from 6.5 to 7.5 on the southern Longmen Shan fault and Anninghe fault. The results show that our current methodology could respond to moderate‐to‐large earthquakes (magnitude 7+) within tens of seconds after the origin time...
FIGURES | View All (5)
View PDF for article title, GNSS for Quasi‐Real‐Time Earthquake Source Determination in Eastern Tibet: A Prototype System toward Early Warning Applications
Purchase
Add to Citation Manager for GNSS for Quasi‐Real‐Time Earthquake Source Determination in Eastern Tibet: A Prototype System toward Early Warning Applications
Includes: Supplemental Content