Modeling nonlinear site effects in physics-based ground motion simulation (2017)
This study examines the performance of nonlinear total-stress wave-propagation site response analysis for modelling site effects in physics-based ground motion simulations of the 2010-2011 Canterbury, New Zealand earthquake sequence. This approach allows for explicit modeling of 3-dimensional ground motion phenomena at the regional scale, as well as detailed site effects and soil nonlinearity at the local scale. The approach is compared to a more commonly used empirical VS30 (30 m time-averaged shear wave velocity)-based method for computing site amplification as proposed by Graves and Pitarka (2010, 2015).
ANZSRC Fields of Research37 - Earth sciences::3706 - Geophysics::370609 - Seismology and seismic exploration
37 - Earth sciences::3709 - Physical geography and environmental geoscience::370903 - Natural hazards
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Insights into the Effect of Source Uncertainties on Ground Motion Simulation of the 2010 Mw7.1 Darfield Earthquake Bradley, Brendon; Razafindrakoto H; Polak, V.; Graves, R.W. (2017)A complete understanding of ground motion uncertainty is fundamental for physics based seismic hazard analysis. This poster focuses on the quantification of the effect of the earthquake source uncertainties (fault geometry, ...
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