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KBCG20 coeffs for Seattle Basin and Alaska #7938
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Hi, I haven't seen any updates on this issue, but if you are interested in a small coding contribution I can add the Cascadia basin term as implemented in Equation 4.14 for the Seattle Basin. This is straightforward, but it would be recommended to use the coefficients that were updated as mentioned in the previous post. This would mean replacing the coefficients table and modifying the basin term slightly so that it is gets capped for the Seattle coefficient. Best |
Hi,
The coefficients for KBCG20 are not consistent with the latest updates for this model.
oq-engine KBCG20 coeffs: https://github.com/gem/oq-engine/blob/master/openquake/hazardlib/gsim/kuehn_2020_coeffs.csv
KBCG20 coefficients from the model repository: https://github.com/nikuehn/KBCG20/blob/master/COEFFS_SEP21/coefficients_KBCG20.csv
Please note that the mean Seattle coefficient for T=2s and T=3s and Alaska coefficients have been updated. I'm aware that the Seattle basin model is not implemented as described in their PEER report (Equation 4.14) and this may not affect a majority of users, but I have been using the coefficients for the Seattle basin from the oq-engine file and it might help future users from getting inconsistent results.
Best,
@smithj382
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