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GSCFRISK

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Journal Article
Published: 01 October 2020
Earthquake Spectra (2020) 36 (1_suppl): 91–111.
... the reconciliation of the differences in hazard estimates relative to the published NBCC values, calculated using GSCFRISK. Source and ground-motion input models developed for the GSCFRISK software were translated to the OpenQuake-engine format for the hazard comparison. In order to successfully undertake...
FIGURES | View All (9)
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Percent difference (OQ – <b>GSCFRISK</b>)&#x2F;OQ as a function of NRL value for Britis...
Published: 01 October 2020
Table 2. Percent difference (OQ – GSCFRISK)/OQ as a function of NRL value for British Columbia locations near Haida Gwaii (see Figure 5 ) PoE (% in 50 years) 10% 2% 10% 2% 10% 2% 10% 2% Location NRL = 4, Sa (0.2) NRL = 1, Sa (0.2) NRL = 4, Sa (1.0) NRL = 1
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Calculated hazard curves using the Cascadia interface source only ( Rogers ...
Published: 01 October 2020
Figure 2. Calculated hazard curves using the Cascadia interface source only ( Rogers et al., 2015 ) with a 125 km down-dip rupture width. The respective curves compare hazard as calculated using GSCFRISK ( Halchuk et al., 2016 ) and calculations in the OpenQuake-engine using the scaling
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Logic tree and associated weights used for the 2015 Fifth Generation model ...
Published: 01 October 2020
Figure 3. Logic tree and associated weights used for the 2015 Fifth Generation model as implemented in GSCFRISK for the 2015 NBCC. The red box indicates the MFD branches that were collapsed to a single branch for implementation into the OpenQuake-engine.
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Comparison of ground-motion attenuation curves interpolated from the  Atkin...
Published: 01 October 2020
Figure 1. Comparison of ground-motion attenuation curves interpolated from the Atkinson and Adams (2013) ground-motion tables for shallow active crust using GSCFRISK and the OpenQuake-engine ground-motion interpolators. Comparisons are shown for a moment magnitude M W 7.15 earthquake
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Comparison of seismic hazard values for Halifax, NS, assuming different max...
Published: 01 October 2020
Table 3. Comparison of seismic hazard values for Halifax, NS, assuming different maximum distance cut-offs for GSCFRISK and the OpenQuake-engine Cut-off distance Sa (0.2 s) g Sa (1.0 s) g GSC-FRISK Open-Quake % diff GSC-FRISK Open-Quake % diff 600 km 0.110 0.108
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Cartoon showing the differences between ground-motion cut-off distance appr...
Published: 01 October 2020
Figure 9. Cartoon showing the differences between ground-motion cut-off distance approach between the two software engines: (a) for GSCFRISK, if the ground-motion cut-off distance, here denoted by the solid green circle about the site of interest (red star) intersects a given area-source zone
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Comparison of 2% in 50 year seismic hazard values (on Site Class C) for rep...
Published: 01 October 2020
Table 1. Comparison of 2% in 50 year seismic hazard values (on Site Class C) for representative Canadian localities as calculated by GSCFRISK and the OpenQuake-engine Locality Sa (0.2 s) g Sa (1.0 s) g GSC-FRISK Open-Quake % diff GSC-FRISK Open-Quake % diff