0 INTRODUCTION Pore-pressure change,which reduces effective normal stress,is a key aftershock trigger,particularly in extensional settings(Miller etal.,2004).Other proposed mechanisms include coseismic stress perturba...0 INTRODUCTION Pore-pressure change,which reduces effective normal stress,is a key aftershock trigger,particularly in extensional settings(Miller etal.,2004).Other proposed mechanisms include coseismic stress perturbations,aseismic slip,and viscoelastic relaxation(Bai et al.,2025;Hu et al.,2025;Perfettini and Avouac,2004;Stein,1999).Determining the dominant mechanism for any event is a critical challenge for understanding regional seismotectonics and assessing evolving hazards.展开更多
基金supported by the National Natural Science Foundation of China(Nos.42174023,42030108)the State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Independent Research Project(No.SKLGP2024Z016)Sichuan Province Science Fund(No.2024NSFSC0802).
文摘0 INTRODUCTION Pore-pressure change,which reduces effective normal stress,is a key aftershock trigger,particularly in extensional settings(Miller etal.,2004).Other proposed mechanisms include coseismic stress perturbations,aseismic slip,and viscoelastic relaxation(Bai et al.,2025;Hu et al.,2025;Perfettini and Avouac,2004;Stein,1999).Determining the dominant mechanism for any event is a critical challenge for understanding regional seismotectonics and assessing evolving hazards.
