华南地震2026，Vol.46Issue(3)：18-22,5.DOI:10.13512/j.hndz.2026.03.03
2024年中国台湾花莲海域7.3级地震库仑应力影响分析
Coulomb Stress Impact from the M7.3 Earthquake in the Hualien Offshore Area of Taiwan,China in 2024
摘要
Abstract
The M7.3 earthquake in the Hualien offshore area of Taiwan,China,in 2024 was the first M7 event in the region following a 17-year quiescence of seismic activity at this magnitude,indicating a shift in the regional seismic pattern.This study collected a large number of focal mechanism solutions from Taiwan Island and its surrounding areas.Through inversion,the optimal rupture planes and auxiliary planes at 0.1°×0.1° grid points were obtained and used as receiver faults to calculate the static Coulomb stress changes caused by the M7.3 earthquake in the Hualien offshore area.The results show that the aftershock distribution corresponds well to areas significantly affected by Coulomb stress loading/unloading;there are two loading areas with Coulomb stress exceeding the threshold in the east and northeast of the epicenter,and the risk of moderate and strong earthquakes in the future increases.关键词
库仑应力/台湾地震/震源机制解/应力触发Key words
Coulomb stress/Taiwan earthquake/Focal mechanism solution/Stress triggering分类
天文与地球科学引用本文复制引用
李强,胡淑芳..2024年中国台湾花莲海域7.3级地震库仑应力影响分析[J].华南地震,2026,46(3):18-22,5.基金项目
中国地震局地震监测预报预警工作任务(CEA-ZQGZ-02501019) （CEA-ZQGZ-02501019）
福建省自然科学基金面上项目(2025J01229)联合资助. （2025J01229）
