Hybrid Broadband Ground Motion Simulation Validation of New Zealand Earthquakes with an Updated 3D Velocity Model and Modified Simulation Methodology (2019)
This poster presents a ground motion simulation validation study in New Zealand considering small magnitude earthquakes (3.5≤Mw≤5.0). 498 earthquakes were modelled as point sources with 5350 ground motion recordings across 293 stations, shown in Figure 1. This study utilized a ‘Modified’ Graves and Pitarka (2010,2015) hybrid broadband ground motion simulation methodology but also compares results with the ‘Standard’ simulation methodology without modifications. The Modified methodology employs the Boore and Thomson (2014) high frequency (HF) path duration model and does not apply empirical Vs30-based site amplification to the low frequency (LF) component of the simulation, based on work by Lee et al. (2019).
CitationLee R, Bradley B (2019). Hybrid Broadband Ground Motion Simulation Validation of New Zealand Earthquakes with an Updated 3D Velocity Model and Modified Simulation Methodology. Palm Springs, CA: SCEC Annual Meeting.
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ANZSRC Fields of Research37 - Earth sciences::3706 - Geophysics::370609 - Seismology and seismic exploration
RightsAll rights reserved unless otherwise stated
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Lee, R.L.; Bradley, Brendon; Pettinga, J.R.; Hughes, M.; Graves, R.W. (University of Canterbury. Civil and Natural Resources EngineeringUniversity of Canterbury. Geological Sciences, 2013)his poster presents the ongoing development of a 3D Canterbury seismic velocity model which will be used in physics-based hybrid broadband ground motion simulation of the 2010-2011 Canterbury earthquakes. Velocity models ...
Toward hybrid broadband ground motion simulation validation for New Zealand-wide Mw>3.5 earthquakes Lee R; Bradley, Brendon; Bellagamba X (2018)
Lee, R.L.; Bradley, Brendon; Ghisetti, F.; Pettinga, J.R.; Hughes, M.W.; Thomson, E.M. (University of Canterbury. Civil and Natural Resources Engineering, 2014)This poster presents the on-going development of a new 3D seismic velocity model of Canterbury, New Zealand. The intention of the model is to provide the 3D crustal structure in the region at multiple length scales for ...