This is a Blender animation from a simulation of the Simulation of a potential Alpine Fault earthquake. The animation was developed by Nick Young of eResearch at the University of Auckland. The simulation was performed by the Bradley research group at the University of Canterbury using UC's BlueGeneP Supercomputer (part of the NZ eScience Infrastructure, NeSI).
-Mw7.9 Alpine fault event with Sth hypocentre.
-Velocity model is South Island Vel Model, siVMv1.64, which contains the 3D 'coarse' travel time tomography model of Eberhart-Phillips et al. with the detailed CantVM1.64 model of the Canterbury basin.
-Animation is with 0.4km grid spacing, so only longer period shaking is shown (the 0.1km grid spacing simulation is too large to upload to RU-vid presently).
Further details can be found at:
Bradley BA, Bae S, Polak V, Lee RL, Thomson EM, Tarbali K. Ground motion simulations of great earthquakes on the Alpine Fault: Effect of hypocentre location and comparison with empirical modelling. New Zealand Journal of Geology and Geophysics. 2017, Vol 60. No. 3, pp. 188-198.
(link to paper: www.dropbox.com/s/25k9707v0pm...)
Note: This is one possible rupture scenario for a large Alpine Fault event. We are currently considering numerous rupture scenarios (both the size of the fault that ruptures and also the location where the rupture initiates [the star]), as these factors have an important influence on the resulting ground shaking intensity.
Information about the Alpine fault itself can be found at: www.gns.cri.nz/Home/Learning/S...
30 май 2016
