基于人工地震的河西务断裂活动性及其设定地震模拟研究

高武平; 俞言祥; 彭远黔; 张文朋; 张安东; 闫成国

doi:10.3799/dqkx.2024.018

Volume 50 Issue 4

Apr. 2025

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Article Navigation > Earth Science > 2025 > 50(4): 1499-1513

Gao Wuping, Yu Yanxiang, Peng Yuanqian, Zhang Wenpeng, Zhang Andong, Yan Chengguo, 2025. Activity Analysis of Hexiwu Fault Based on Artificial Earthquake and Its Set Earthquake Simulation Research. Earth Science, 50(4): 1499-1513. doi: 10.3799/dqkx.2024.018

Citation:

Gao Wuping, Yu Yanxiang, Peng Yuanqian, Zhang Wenpeng, Zhang Andong, Yan Chengguo, 2025. Activity Analysis of Hexiwu Fault Based on Artificial Earthquake and Its Set Earthquake Simulation Research. Earth Science, 50(4): 1499-1513. doi: 10.3799/dqkx.2024.018

Citation:

Gao Wuping, Yu Yanxiang, Peng Yuanqian, Zhang Wenpeng, Zhang Andong, Yan Chengguo, 2025. Activity Analysis of Hexiwu Fault Based on Artificial Earthquake and Its Set Earthquake Simulation Research. Earth Science, 50(4): 1499-1513. doi: 10.3799/dqkx.2024.018

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Activity Analysis of Hexiwu Fault Based on Artificial Earthquake and Its Set Earthquake Simulation Research

doi: 10.3799/dqkx.2024.018

1.
Institute of Geophysics, China Earthquake Administration, Beijing 100081, China
2.
Tianjin Earthquake Administration, Tianjin 300201, China
3.
Hebei Earthquake Administration, Shijiazhuang 050021, China

Received Date: 2023-10-26
Available Online: 2025-05-10
Publish Date: 2025-04-25

Abstract

Abstract

The Hexiwu fault is a large-scale Quaternary fault in the hinterland of the Beijing-Tianjin-Hebei urban agglomeration, and a series of shallow artificial seismic surveys and drillhole joint profiles have been carried out around the fault, which further revealed that the fracture is an active fracture in the early Late Pleistocene. Recently, Tianjin Seismological Bureau completed four 28T controlled-source artificial seismic surveys across the rupture, providing new evidence for the study of the rupture characteristics and activity of the rupture. The artificial seismic profiles show that: (1) the fracture extends northward and ends between Gaowang Highway and Jingtang Highway; (2) the depths of the shallowest upper fault point on different profiles vary, but generally reach more than 150 m, which indicates that the Heximo Fracture has a segmented distribution, but the rupture activity basically belongs to the same period. Regional data show that the fracture extends southward to connect with the Niudong Fault, which together form a 100 km-long fracture zone, and there is a possibility of earthquakes of magnitude 7 or above. From the demand of Beijing-Tianjin-Hebei urban agglomeration to prevent the risk of large earthquakes, numerical simulation of the rupture setting earthquake Mw7.3 is carried out to analyze the impacts of potential long-period ground shaking on the Beijing-Tianjin-Hebei region.
- Hexiwu fault,
- Jizhong depression,
- artificial earthquake,
- Beijing-Tianjin-Hebei urban agglomeration,
- geophysics

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References(97)

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Activity Analysis of Hexiwu Fault Based on Artificial Earthquake and Its Set Earthquake Simulation Research

doi: 10.3799/dqkx.2024.018

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