The 3D Numerical Simulation of Near-Source Ground Motion during the Marsica Earthquake, Central Italy, 100 years later

In this paper we show 3D physics-based numerical simulations of the devastating Marsica earthquake, Central Italy, occurred 100 years ago. The results provide a realistic estimation of the earthquake ground motion and fit reasonably well both the geodetic measurements of permanent ground settlement, and the observed macroseismic distribution of damage. In addition, these results provide a very useful benchmark to improve the current knowledge of near-source earthquake ground motion, including evaluation of the best distance metric to describe the spatial variability of the peak values of ground motion, as well as the relative importance of fault normal vs fault parallel components.