Current activity of Handong fault in Handan

Yanyun Nan; Yigang Li; Tong Yang; Zhijie Zhang

doi:10.1117/12.3011221

15 November 2023 Current activity of Handong fault in Handan

Yanyun Nan, Yigang Li, Tong Yang, Zhijie Zhang

Proceedings Volume 12815, International Conference on Remote Sensing, Mapping, and Geographic Systems (RSMG 2023); 128151P (2023) https://doi.org/10.1117/12.3011221
Event: International Conference on Remote Sensing, Mapping, and Geographic Systems (RSMG 2023), 2023, Kaifeng, China

Abstract

The distribution range of the dominant casualties of each intensity profile in different regions is basically the same, but the probability of casualties of the same magnitude in different regions is quite different.The Handan Fault is a hidden fault east of the Taihang Mountain Piedmont Fault. It is the boundary between the Handan Depression and the Cheng'an Low Uplift in the North China Plain Depression. It is located within the planning and construction range of the Eastern Handan New Area. Studying its activity is of great significance for earthquake risk assessment, and at the same time provides effective support for site selection and disaster prevention of major regional engineering projects. This paper uses the SLC data, IW mode, VV polarization, and de-orbit data of the Sentineil-1A satellite in 96 scenes from 2017 to 2021 to analyze the activity of the Handong fault based on SBAS-InSAR technology. The results show that in 2017-2021, the deformation characteristics of the two sides of the East Handan fault are significantly different. The west wall is uplifted and the east wall subsides. The average velocity of the west wall is 0.51mm/a, and the east wall velocity is -29.8mm/a. Combined with the data of regional tectonic movement, groundwater exploitation survey, and borehole detection, it is believed that the Handan Fault is a high-angle normal fault dipping westward, and its current activity is relatively low. The uplift of NW wall is mainly affected by the overall uplift of the Taihang Mountain, and the subsidence of the SE wall is mainly caused by the overexploitation of groundwater.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yanyun Nan, Yigang Li, Tong Yang, and Zhijie Zhang "Current activity of Handong fault in Handan", Proc. SPIE 12815, International Conference on Remote Sensing, Mapping, and Geographic Systems (RSMG 2023), 128151P (15 November 2023); https://doi.org/10.1117/12.3011221

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Deformation

Image processing

Radar

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