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Characterization of the Abnormal Response of Strain Time Series to Earthquakes
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Yibin ZHAO1, Yanfang ZHANG1, *, Zhitong JIN1, Fuchang WANG1, Lei TANG2
Journal of Geodesy and Geodynamics | 2025, 45(6) : 568 - 573
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Journal of Geodesy and Geodynamics | 2025, 45(6): 568-573
Characterization of the Abnormal Response of Strain Time Series to Earthquakes
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Yibin ZHAO1, Yanfang ZHANG1, *, Zhitong JIN1, Fuchang WANG1, Lei TANG2
Affiliations
  • 1 College of Science, Institute of Disaster Prevention, 465 Xueyuan Street, Sanhe 065201, China
  • 2 China Earthquake Networks Center, 5 Nanheng Street, Sanlihe, Beijing 100045, China

    • ZHAO Yibin, professor, majors in system modeling and simulation, data mining and feature extraction, earthquake disaster loss prediction and assessment, E-mail:

About Author:

ZHAO Yibin, professor, majors in system modeling and simulation, data mining and feature extraction, earthquake disaster loss prediction and assessment, E-mail:

Published: 2025-06-15 doi: 10.14075/j.jgg.2024.07.310
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The strain monitoring data from the Guza station in 2022 to 2023 were analyzed using time series analysis. By comparing the difference in strain signals at the observation site during the seismic and non-seismic periods, it is concluded that during earthquakes above MS4.5, there are obvious trend anomalies in both the detrended surface strain and the corrected principal strain direction. The likelihood of earthquakes increases when the detrended surface strain decreases at 1.1 times and the variance increases significantly. The trend of the corrected principal strain directions during seismicity is similar to the drug metabolism concentration curve model. The fluctuation period is small and the amplitude is large, which is significantly different from the nearly straight-line trend during the steady state.

strain conversion  /  principal strain direction correction  /  time series  /  correlation analysis  /  anomalous response
赵宜宾, 张艳芳, 靳志同, 王福昌, 唐磊. 应变时间序列对地震的异常响应特征分析. 大地测量与地球动力学, 2025 , 45 (6) : 568 -573 . DOI: 10.14075/j.jgg.2024.07.310
Yibin ZHAO, Yanfang ZHANG, Zhitong JIN, Fuchang WANG, Lei TANG. Characterization of the Abnormal Response of Strain Time Series to Earthquakes[J]. Journal of Geodesy and Geodynamics, 2025 , 45 (6) : 568 -573 . DOI: 10.14075/j.jgg.2024.07.310
Funding
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  • Science and Technology Research and Development Plan Self-Funded Projects of Langfang(2023011072)
Appendix
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Year 2025 volume 45 Issue 6
19
6
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Article Info
doi: 10.14075/j.jgg.2024.07.310
  • Receive Date：2024-07-01
  • Online Date：2026-10-30
  • Published：2025-06-15
Article Data
Affiliations
History
  • Received：2024-07-01
Funding
Science and Technology Research and Development Plan Self-Funded Projects of Langfang(2023011072)
Affiliations
    1 College of Science, Institute of Disaster Prevention, 465 Xueyuan Street, Sanhe 065201, China
    2 China Earthquake Networks Center, 5 Nanheng Street, Sanlihe, Beijing 100045, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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