地震地磁观测与研究2025，Vol.46Issue(3)：46-55,10.DOI:10.3969/j.issn.1003-3246.2025.03.006
青海及邻区MS≥6.0地震前固体潮调制比时空演化特征分析
Analysis of spatio-temporal evolution characteristics of solid tide modulation ratio before MS≥6.0 earthquakes in Qinghai and its adjacent areas
摘要
Abstract
This article uses the spatio-temporal scanning method to retrospectively study the spatio-temporal evolution process of solid tide modulation ratio before 12 earthquakes of MS≥6.0 in Qinghai and its neighboring areas.The results showed that:Anomalous high solid-tide modulation ratios were observed prior to each of the five MS≥6.0 earthquakes,and thus,the modulation ratio anomaly had a good indication of the occurrence of subsequent target earthquakes in both time and space.Moreover,the length of the time scanning window may have a certain positive correlation with the evolution time of the anomaly and the size of the anomaly region.The modulation ratio anomaly presents a spatio-temporal evolution pattern of"anomaly occurrence-enhancement-attenuation-(enhancement)-(attenuation)-seismicity".关键词
青海及邻区/固体潮调制比/时空演化特征Key words
Qinghai and its neighboring areas/solid tide modulation ratio/spatio-temporal evolution characteristics引用本文复制引用
胡维云,余娜,李启雷,张丽峰,郭瑛霞,孙玺皓..青海及邻区MS≥6.0地震前固体潮调制比时空演化特征分析[J].地震地磁观测与研究,2025,46(3):46-55,10.基金项目
青海省地震局2023年地震科学基金(项目编号:2023B01) （项目编号:2023B01）
青海省科技计划项目(应用基础研究计划)(项目编号:2025-ZJ-706) （应用基础研究计划）
青海省科技计划项目(应用基础研究计划)(项目编号:2023-ZJ-770) （应用基础研究计划）
2023年度震情跟踪定向工作任务(青年)(项目编号:2023010115) （青年）
