From Hypocenter to Dynamic System-Earthquake Models
Evolution over a Hundred Years
1 Key Laboratory of Earthquake Geodesy, Institute of Seismology, CEA, 40 Hongshance Road, Wuhan 430071, China
2 Wuhan Base of Institute of Crustal Dynamics, CEA, 40 Hongshance Road, Wuhan 430071, China
Abstract：Earthquake models are restricted to the academic and scientific level| further, they evolve over time. We researched the history of earthquake model evolution: models that consider only the hypocenter region (fault zone)→models that consider hypocenter region together with surrounding tectonics→models that consider upper crust brittle layer and deep crust ductile layers coupling with upper mantle→models that consider the earthquake as an activity of present continental deformation dynamic system’s self-organization evolution process. The evolutionary trend is from hypocenter to dynamic system over a hundred years. Its characteristics are: time-space domain expands, dimension rises of the models| from reductionism mechanism to holism| from classical mechanics to complex system theory and nonlinear dynamics| new models contain and surpass old models, and are better approaching nature. Benefitting from the unprecedented achievements of seismic geodesy, strong correlativity and interdisciplinary methods, new earthquake models are developing.
