1-8 OF 8 RESULTS FOR

Yujiasi Syncline

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
Image
(a) Relocated epicenters in and around the Yujiasi syncline. Colors indicate the time from the Ms 6.0 Luxian earthquake. (b) Focal depths in and around the Yujiasi syncline. Colors indicate the focal depths. The main seismic strips are divided into six blocks (A1–A6) by the blue dotted polygons. Red triangles represent the seismic stations. The red lines and numbers represent the faults and the corresponding dip angles, respectively. DJW‐F, the Duijinwan fault; GFS, Gufoshan; HNY‐F, the Huangniya fault; HYS‐F, the Huayingshan fault zone; LGS, Luoguanshan; SHC‐F, the Shuanghechang fault; TYP‐F, the Tianyangping fault; YJS, Yujiasi; YZY‐F, the Yanziya fault.

(a) Relocated epicenters in and around the Yujiasi syncline. Colors indicat... Available to Purchase

Published: 13 April 2023
Figure 5. (a) Relocated epicenters in and around the Yujiasi syncline. Colors indicate the time from the M s  6.0 Luxian earthquake. (b) Focal depths in and around the Yujiasi syncline. Colors indicate the focal depths. The main seismic strips are divided into six blocks (A1–A6
Image
(a) The event magnitude versus time, (b) the daily number of ML 0.7+ earthquakes versus time, (c) the maximum‐likelihood b‐value of Gutenberg–Richter frequency–magnitude relationship for the earthquakes from April 2021 to January 2022, and (d) statistics of the focal depths with interval of 0.1 km for earthquakes in the Yujiasi syncline (the red line) and in the whole region (the blue line) and the strata. The percentages of events in different layers in the Yujiasi syncline are marked. The color version of this figure is available only in the electronic edition.

(a) The event magnitude versus time, (b) the daily number of M L  0... Available to Purchase

Published: 13 April 2023
with interval of 0.1 km for earthquakes in the Yujiasi syncline (the red line) and in the whole region (the blue line) and the strata. The percentages of events in different layers in the Yujiasi syncline are marked. The color version of this figure is available only in the electronic edition.
Image
(a) Estimated stress shape ratio (ϕ) of the principal stresses and (b) estimated azimuths and plunge angles as well as their uncertainties of the principal stress axis for the Yujiasi syncline. The color version of this figure is available only in the electronic edition.

(a) Estimated stress shape ratio ( ϕ ) of the principal stresses and (b... Available to Purchase

Published: 13 April 2023
Figure 9. (a) Estimated stress shape ratio ( ϕ ) of the principal stresses and (b) estimated azimuths and plunge angles as well as their uncertainties of the principal stress axis for the Yujiasi syncline. The color version of this figure is available only in the electronic edition.
Image
(a–f) The spatial–temporal evolution of the epicenters in and around the Yujiasi syncline. Black lines indicate the faults. The six blocks A1–A6 are marked by the dotted polygon; the total number of the events in each block are also labeled. Colors indicate the time from the Ms 6.0 Luxian earthquake. (g) The daily event number versus time for the blocks A1–A6. Note that the scalar of daily event number for blocks A1–A2 is half of that for blocks A3–A6.

(a–f) The spatial–temporal evolution of the epicenters in and around the Yu... Available to Purchase

Published: 13 April 2023
Figure 6. (a–f) The spatial–temporal evolution of the epicenters in and around the Yujiasi syncline. Black lines indicate the faults. The six blocks A1–A6 are marked by the dotted polygon; the total number of the events in each block are also labeled. Colors indicate the time from the M s
Journal Article

Spatial–Temporal Distribution and Focal Mechanisms for the Shallow Earthquakes in the Rongchang‐Luxian Region in Southern Sichuan Basin, China Available to Purchase

Guijuan Lai, Changsheng Jiang, Weilai Wang, Xinglin Lei, Long Zhang, Guangyao Cai, Haobo Gong, Xiangyun Guo, Mingfei Chen
Published: 13 April 2023
Seismological Research Letters (2023) 94 (4): 1860–1876.
DOI: https://doi.org/10.1785/0220220339
...Figure 5. (a) Relocated epicenters in and around the Yujiasi syncline. Colors indicate the time from the M s  6.0 Luxian earthquake. (b) Focal depths in and around the Yujiasi syncline. Colors indicate the focal depths. The main seismic strips are divided into six blocks (A1–A6...
FIGURES | View All (10)
View PDF for article title, Spatial–Temporal Distribution and Focal Mechanisms for the Shallow Earthquakes in the Rongchang‐Luxian Region in Southern Sichuan Basin, China
Purchase
Add to Citation Manager for Spatial–Temporal Distribution and Focal Mechanisms for the Shallow Earthquakes in the Rongchang‐Luxian Region in Southern Sichuan Basin, China
Includes: Supplemental Content
Journal Article

Unmanned Aerial Vehicle Aeromagnetic Analyses Reveal the Causative Faults and Seismogenic Mechanism of the 2021 M s 6.0 Luxian, China, Earthquake Available to Purchase

Junhao Zhao, Liguo Jiao, Yu Lei, Jiyao Tu
Published: 11 August 2023
Seismological Research Letters (2023) 94 (6): 2627–2641.
DOI: https://doi.org/10.1785/0220230029
...‐source earthquakes are more common in the eastern and northern areas. These findings suggest that the fault has a nearly vertical dip, with a minor dip toward the southwest. The epicenter of the mainshock is situated near the Yujiasi syncline, which lies between the Luoguan Mountain anticline...
FIGURES | View All (9)
View PDF for article title, Unmanned Aerial Vehicle Aeromagnetic Analyses Reveal the Causative Faults and Seismogenic Mechanism of the 2021 M s 6.0 Luxian, China, Earthquake
Purchase
Add to Citation Manager for Unmanned Aerial Vehicle Aeromagnetic Analyses Reveal the Causative Faults and Seismogenic Mechanism of the 2021 M s 6.0 Luxian, China, Earthquake
Includes: Supplemental Content
Journal Article

High‐Resolution Velocity and Seismic Anisotropy Structures of the 2021 M s 6.0 Luxian Earthquake Zone in Sichuan Basin Available to Purchase

Pingping Wu, Huili Guo, Wei Xu, Tongwei Qin, Dahu Li, Laiyu Lu, Zhifeng Ding
Published: 17 July 2024
Seismological Research Letters (2025) 96 (1): 78–96.
DOI: https://doi.org/10.1785/0220240046
... earthquakes predominate in the Yujiasi sedimentary syncline. These findings may imply that the study area is influenced by a complex local stress field. A detailed 3D velocity model plays a critical role in understanding the seismic nucleation environment and provides valuable insights into the subsurface...
FIGURES | View All (10)
View PDF for article title, High‐Resolution Velocity and Seismic Anisotropy Structures of the 2021 M s 6.0 Luxian Earthquake Zone in Sichuan Basin
Purchase
Add to Citation Manager for High‐Resolution Velocity and Seismic Anisotropy Structures of the 2021 M s 6.0 Luxian Earthquake Zone in Sichuan Basin
Includes: Supplemental Content
Image
(a) Topography of the Sichuan basin, the surrounding tectonic blocks, and locations of M 5+ earthquakes since 2000. Colors represent the altitudes. The green circles indicate M 5.0–5.4 earthquakes and yellow circles indicate M 5.5–5.9 events. The focal mechanism solutions of 10 M 6+ earthquakes are from Guo et al. (2022). The grey and black dotted lines show the boundary and main tectonic divisions of the Sichuan basin, respectively. The Weiyuan (WY), Changning (CN), and Luzhou (LZ) shale gas blocks are shown by black dotted polygons. HYS‐F, the Huayingshan fault zone; LMS‐F, the Longmenshan fault zone; LQS‐F, the Longquanshan fault zone; QYS‐F, the Qiyaoshan fault zone. (b) The Ms 6.0 Luxian earthquake occurred in the Yujiasi (YJS) syncline between the western and eastern branch of the Huayingshan fault in the LZ block. The color version of this figure is available only in the electronic edition.

(a) Topography of the Sichuan basin, the surrounding tectonic blocks, and l... Available to Purchase

Published: 13 April 2023
; LMS‐F, the Longmenshan fault zone; LQS‐F, the Longquanshan fault zone; QYS‐F, the Qiyaoshan fault zone. (b) The M s  6.0 Luxian earthquake occurred in the Yujiasi (YJS) syncline between the western and eastern branch of the Huayingshan fault in the LZ block. The color version of this figure