Fig. 8: Analysis of the statistical spectral properties of the spatial variability of dynamic rupture parameters across the ensemble models.
From: Physics-based broadband characterization of weak earthquakes
Panels show the power spectral density (PSD) of the perturbations estimated from the posterior ensembles of the dynamic rupture parameters with respect to their averages (for prestress see Fig. 5) for the two analyzed earthquakes (columns), plotted as a function of wavelength (the inverse of wavenumber k), displayed from long to short wavelengths (i.e., decreasing from left to right). The arrow indicates k-2 power-law spectral decay. The std value in each plot is the standard deviation of the perturbations (i.e., the square roots of their power).
