江苏淮安盐矿区地震活动智能监测及其分布特征

刘巧霞; 田晓峰; 王清东; 程佳; 徐志萍; 赵延娜; 王宏伟

doi:10.3799/dqkx.2025.236

Volume 51 Issue 1

Jan. 2026

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Article Navigation > Earth Science > 2026 > 51(1): 160-172

Liu Qiaoxia, Tian Xiaofeng, Wang Qingdong, Cheng Jia, Xu Zhiping, Zhao Yanna, Wang Hongwei, 2026. Intelligent Monitoring and Distribution Characteristics of Seismic Activity in Huai'an Salt Mining Area, Jiangsu Province. Earth Science, 51(1): 160-172. doi: 10.3799/dqkx.2025.236

Citation:

Liu Qiaoxia, Tian Xiaofeng, Wang Qingdong, Cheng Jia, Xu Zhiping, Zhao Yanna, Wang Hongwei, 2026. Intelligent Monitoring and Distribution Characteristics of Seismic Activity in Huai'an Salt Mining Area, Jiangsu Province. Earth Science, 51(1): 160-172. doi: 10.3799/dqkx.2025.236

Citation:

Liu Qiaoxia, Tian Xiaofeng, Wang Qingdong, Cheng Jia, Xu Zhiping, Zhao Yanna, Wang Hongwei, 2026. Intelligent Monitoring and Distribution Characteristics of Seismic Activity in Huai'an Salt Mining Area, Jiangsu Province. Earth Science, 51(1): 160-172. doi: 10.3799/dqkx.2025.236

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Intelligent Monitoring and Distribution Characteristics of Seismic Activity in Huai'an Salt Mining Area, Jiangsu Province

doi: 10.3799/dqkx.2025.236

1.
Geophysical Exploration Center, China Earthquake Administration, Zhengzhou 450002, China
2.
School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, China

Received Date: 2025-06-11
Publish Date: 2026-01-25

Abstract

Abstract

In 2021, the small earthquake activity significantly increased in the short term. To investigate the relationship between seismic activity and salt mining in the region, it deployed a dense array of 54 short period seismographs in the salt mining area and carried out a one-year microseismic monitoring. The high-resolution earthquake catalog for mining areas, constructed using deep learning earthquake automatic detection methods and absolute and relative repositioning, greatly improves the accuracy of locating the epicenter position, especially the depth of the earthquake source, of small earthquakes in mining areas, effectively enhancing the monitoring ability of seismic activity in small-scale salt mining areas. Combined with the industrial production background and geological conditions of the area, the following main understandings are obtained. The mining area is mainly characterized by microseismic activity, which is distributed in two independent earthquake clusters in space. The cluster 1 is located below the salt well, with a significantly shallower depth of the earthquake source than the cluster 2. The cluster 2 is located in the surface water inflow area that several kilometers far from the salt well, and lags behind the cluster 1 by about 8 months in time. After analysis, it is possible that the cluster 1 is directly related to mining activities, while the cluster 2 may be related to local fault activation caused by fluid diffusion. This study indicates that based on dense array covering mining areas and intelligent detection technology, the understanding of the distribution characteristics and seismic mechanisms of small earthquakes in salt mining areas can be greatly improved, which can provide key basis for optimizing production control plans.
- artificial intelligence,
- earthquake detection,
- inducing seismic activity,
- seismic hazard,
- seismology

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References(52)

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Intelligent Monitoring and Distribution Characteristics of Seismic Activity in Huai'an Salt Mining Area, Jiangsu Province

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