Repository: Simulations
This visualisation represents the simulated wavefield of the 2009 L'Aquila earthquake, generated with Seissol, http://www.solid-earth.net/4/43/2013/se-4-43-2013.html.
The animation shows ground motion in Calabria (Italy) simulated for the 2012 Ml 5 Mormanno - Calabria (Italy) earthquake, viewed from the NW. The vertical component of the velocity is represented. Red and blue colors indicate positive and negative values of the field, respectively. The 100sec-long simulation has been performed using SPECFEM3D_Cartesian with a 3D tomographic model and a point source description. It highlights how seismic waves are influenced by topography and 3D heterogeneities, which cause prominent wavefront distortions (E. Casarotti, F. Magnoni, Istituto Nazionale di Geofisica e Vulcanologia).
The animation shows ground motion in Calabria (Italy) simulated for the 2012 Ml 5 Mormanno - Calabria (Italy) earthquake, viewed from the S. The vertical component of the velocity is represented. Red and blue colors indicate positive and negative values of the field, respectively. The 60sec-long simulation has been performed using SPECFEM3D_Cartesian with a 3D tomographic model and a point source description. It highlights how seismic waves are influenced by topography and 3D heterogeneities, which cause prominent wavefront distortions (E. Casarotti, F. Magnoni, Istituto Nazionale di Geofisica e Vulcanologia).
The animation shows ground motion in Northern Italy simulated for the May 20, 2012, Po Valley earthquake, viewed from the S. The vertical component of the velocity is represented. Red and blue colors indicate positive and negative values of the field, respectively. The 60sec-long simulation has been performed using SPECFEM3D_Cartesian with a 3D tomographic model and a finite fault description. It highlights how seismic waves are influenced by topography and 3D heterogeneities, which cause prominent wavefront distortions. Especially longer wavelenghts are affected by the low wavespeed sedimentary profile of Po Valley, trapping energy and prolongating ground motion (E. Casarotti, F. Magnoni, Istituto Nazionale di Geofisica e Vulcanologia).