In seismology, understanding earthquake source properties and characterizing its parameters is crucial. Among these parameters, the seismic moment (M₀) stands out - it measures earthquake size and directly relates to fault dimensions and slip. This study focuses on Northeast Italy. The main goal of this work is to define an empirical relation between seismic moment and S-wave peak displacement, specific for the region, that means including parameters representing attenuation characteristics of the region. Thus, this work focuses on the definition of the parameters of the empirical relation. They were retrieved, first of all, by fitting the omega-squared Brune source model [1] to the low-frequency part of the source spectrum. Leveraging the Generalized Inversion Technique (GIT), an overdetermined linear system of equations was solved.
Non-parametric spectral inversion of seismic source developed for Northeastern Italy
Jafari, Seyedmohammadsadegh;Ertuncay, Deniz;Fornasari, Simone Francesco;Pazzi, Veronica;
2024-01-01
Abstract
In seismology, understanding earthquake source properties and characterizing its parameters is crucial. Among these parameters, the seismic moment (M₀) stands out - it measures earthquake size and directly relates to fault dimensions and slip. This study focuses on Northeast Italy. The main goal of this work is to define an empirical relation between seismic moment and S-wave peak displacement, specific for the region, that means including parameters representing attenuation characteristics of the region. Thus, this work focuses on the definition of the parameters of the empirical relation. They were retrieved, first of all, by fitting the omega-squared Brune source model [1] to the low-frequency part of the source spectrum. Leveraging the Generalized Inversion Technique (GIT), an overdetermined linear system of equations was solved.Pubblicazioni consigliate
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