Impact Analysis of the Ms 6.2 Earthquake on Landslide Deformation and Near-Earth Space Environment in Jishishan， Gansu Province

ZHAO Qingzhi; WANG Pengcheng; YAO Yibin; GAO Yuting; WU Kan; LI Zufeng; MIAO Zhixuan; LIU Chen; WANG Wei; SUN Tingting; CHANG Lulu; MA Zhi

doi:10.13203/j.whugis20240080

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Impact Analysis of the Ms 6.2 Earthquake on Landslide Deformation and Near-Earth Space Environment in Jishishan， Gansu Province

Jishishan Earthquake | 更新时间：2026-11-05

- Impact Analysis of the Ms 6.2 Earthquake on Landslide Deformation and Near-Earth Space Environment in Jishishan， Gansu Province
- Geomatics and Information Science of Wuhan University Vol. 50, Issue 2, Pages: 247-256(2025)
- 作者机构：
  
  1.西安科技大学测绘科学与技术学院，陕西西安，710054
  2.武汉大学测绘学院，湖北武汉，430079
  3.空军军医大学航空航天医学教育部重点实验室，陕西西安，710032
  4.中国电建集团西北勘测设计研究院有限公司，陕西西安，710065
  5.天津市轨道交通导航定位及时空大数据技术重点实验室，天津，300251
- 作者简介：
- 基金信息：
- DOI：10.13203/j.whugis20240080
  CLC： P227;P426
- Received：10 March 2024，
  
  Published：05 February 2025
- 稿件说明：
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赵庆志,王鹏程,姚宜斌，等.甘肃积石山Ms 6.2地震对滑坡形变及近地空间环境影响分析[J].武汉大学学报（信息科学版）,2025,50(2):247-256.

ZHAO Qingzhi,WANG Pengcheng,YAO Yibin,et al.Impact Analysis of the Ms 6.2 Earthquake on Landslide Deformation and Near-Earth Space Environment in Jishishan, Gansu Province[J].Geomatics and Information Science of Wuhan University,2025,50(2):247-256.
赵庆志,王鹏程,姚宜斌，等.甘肃积石山Ms 6.2地震对滑坡形变及近地空间环境影响分析[J].武汉大学学报（信息科学版）,2025,50(2):247-256. DOI：10.13203/j.whugis20240080

ZHAO Qingzhi,WANG Pengcheng,YAO Yibin,et al.Impact Analysis of the Ms 6.2 Earthquake on Landslide Deformation and Near-Earth Space Environment in Jishishan, Gansu Province[J].Geomatics and Information Science of Wuhan University,2025,50(2):247-256. DOI：10.13203/j.whugis20240080

摘要

2023⁃12⁃18甘肃省临夏回族自治州积石山发生Ms 6.2地震，为减少地震及其次生灾害对人民生命财产造成的损失，研究震后滑坡及近地空间环境变化对地震次生灾害的防治具有重要意义。采集距离震源中心51 km左右的滑坡、大坝以及基准站的全球导航卫星系统原始观测数据进行精密单点定位解算，通过统计站点位移、天顶对流层延迟（zenith tropospheric delay，ZTD）和大气可降水量的变化情况，分析了地震对滑坡作用及近地空间环境的影响。实验结果表明，本次地震并未对该处滑坡造成瞬时破坏，但地震会破坏滑坡稳定性，在地震后一天部分滑坡点位缓慢位移高达10 mm以上；此外，在地震后天顶对流层延迟呈现出异常增高的变化趋势；对影响其异常变化的原因进行分析，发现气压变化对震后ZTD变化有一定影响，但其主要是由于水汽异常变化所导致，证明了地震会导致震区水汽异常增大。该研究为后续地震所引发滑坡变形和空间环境变化等相关研究提供参考。

Abstract

Objectives

An Ms 6.2 earthquake that struck Jishishan

Linxia Hui Autonomous Prefecture

Gansu Provinve on 18 December 2023 is highly prone to causing landslides and other disasters. In order to reduce the damage caused by the earthquake and its secondary disasters to people's lives and properties

it is necessary to monitor the landslide area and its near-earth spatial environment as soon as possible.

Methods

The raw global navigation satellite system observation data of the landslide

the dam and the re⁃ference station

which are about 51 km away from the epicentre of the earthquake

are collected for precise point positioning solving

and the site displacements are counted. The effects of the earthquake on the landslide and the nea

r-earth spatial environment were studied and analyzed by counting the changes in zenith tropospheric delay (ZTD) and precipitable water vapor (PWV)

Results

The experimental results show that the earthquake did not cause transient damage to the landslide

but the earthquake will damage the stability of the landslide

in the day after the earthquake part of the landslide site slow displacement of up to 10 mm or more. In addition

the zenith tropospheric delay after the earthquake showed anomalous increase in the trend of change

which is mainly due to the water vapour anomalous changes.

Conclusions

The vicinity of this landslide

stations HP03 and HP04

requires timely and focused surveys to assess the potential for hazard. Long-term monitoring of other landslide sites is also required to keep abreast of the risk of landslide hazards. Since this earthquake occurred in winter

the climate is dry and the PWV value is small

there is a lack of rainfall conditions

although the ZTD and PWV changed abnormally

it will not lead to abnormal rainfall in the earthquake area

which is conducive to the rescue work after the earthquake.

关键词

Keywords

references

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