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Published on Feb 14, 2016
Simulation of the 14 February 2016 Christchurch Earthquake (Mw5.8). 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). [15/02/2016:1600hrs] Key physical phenomena include: 1. The strongest shaking occurs on the East coast (New Brighton, Parklands, Sumner); 2. The Banks Peninsula / Port Hills prevents strong wave propagation to the South and South West toward Rolleston 3. The increasing thickness of sedimentary soils to the North of Christchurch leads to the basin-induced surface waves seen to reverberate around the North Christchurch and Kaiapoi regions, long after the shaking has attenuated in South Christchurch
Technical details: This simulation-based model also performs much better than traditional empirical ground motion models as the three links below illustrate: Peak ground acceleration with distance: https://www.dropbox.com/s/iia0p35j9bq...