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STRON GGROUND MOTION SIMULATIONS AND ASSESMENT OF INFLUENCE OF MODEL PARAMETERS...
Zadonina, E.; Caldeira, Bento; Bezzeghoud, Mourad; Borges, JoséModeling near-field ground motion is an important and useful tool of modern seismology. It helps in studies of seismic events and mitigation of seismic hazards. Several approaches are widely used to obtain synthetic ground motion for a finite earthquake source. In our work we use a finite difference algorithm, developed for 3D structures and kinematic source model, to compute near-field ground motions from a re...
Strong Ground Motion Simulations and Assessment of Influence of Model Parameter...
Zadonina, E.; Caldeira, Bento; Bezzeghoud, Mourad; Borges, JoséModeling near-field ground motion is an important and useful tool of modern seismology. In our work we use a finite difference algorithm to compute near-field ground motions from a real moderate event with pre-existing slip distribution model. Lately, synthetic seismograms are quantitatively compared with observed waveforms from near-field seismic stations in order to justify created model. Furthermore, we inde...
Influence of model parameters on synthesized high-frequency strong-motion wavef...
Zadonina, E; Caldeira, B; Bezzeghoud, Mourad; Borges, JFWaveform modeling is an important and helpful instrument of modern seismology that may provide valuable information. However, synthesizing seismograms requires to define many parameters, which differently affect the final result. Such parameters may be: the design of the grid, the structure model, the source time functions, the source mechanism, the rupture velocity. Variations in parameters may produce signifi...
Slip distribution, coseismic deformation and Coulomb stress change for the 12 M...
Zadonina, E; Caldeira, B; Bezzeghoud, Mourad; Borges, JFThe May 12, 2008 Wenchuan earthquake (Mw7.9) took place at the transition between the mountainous chain of Shan and the basin of Sichuan along the Longmen Shan Fault zone (31.1oN, 103.3oE; USGS). With a magnitude of 7.9 and a depth of ∼19 km the earthquake produced a 300-km-long fault rupture. It was the largest earthquake recorded in the region during the last centuries. It claimed more than 69,000 lives, indu...
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