大地测量与地球动力学2025，Vol.45Issue(6)：568-573,6.DOI:10.14075/j.jgg.2024.07.310
应变时间序列对地震的异常响应特征分析
Characterization of the Abnormal Response of Strain Time Series to Earthquakes
摘要
Abstract
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 likeli-hood of earthquakes increases when the detrended surface strain decreases at 1.1 times and the vari-ance 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 ampli-tude is large,which is significantly different from the nearly straight-line trend during the steady state.关键词
应变换算/主应变方向校正/时间序列/关联分析/异常响应Key words
strain conversion/principal strain direction correction/time series/correlation analysis/anomalous response分类
地球科学引用本文复制引用
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[J].大地测量与地球动力学,2025,45(6):568-573,6.基金项目
廊坊市科学技术研究与发展计划自筹经费项目(2023011072). Science and Technology Research and Development Plan Self-Funded Projects of Langfang,No.2023011072. （2023011072）
