TY  - JOUR
A1  - Bommer, Julian J.
A1  - Coppersmith, Kevin J.
A1  - Coppersmith, Ryan T.
A1  - Hanson, Kathryn L.
A1  - Mangongolo, Azangi
A1  - Neveling, Johann
A1  - Rathje, Ellen M.
A1  - Rodriguez-Marek, Adrian
A1  - Scherbaum, Frank
A1  - Shelembe, Refilwe
A1  - Stafford, Peter J.
A1  - Strasser, Fleur O.
T1  - A SSHAC Level 3 Probabilistic Seismic Hazard Analysis for a New-Build Nuclear Site in South Africa
JF  - Earthquake spectra : the professional journal of the Earthquake Engineering Research Institute
N2  - A probabilistic seismic hazard analysis has been conducted for a potential nuclear power plant site on the coast of South Africa, a country of low-to-moderate seismicity. The hazard study was conducted as a SSHAC Level 3 process, the first application of this approach outside North America. Extensive geological investigations identified five fault sources with a non-zero probability of being seismogenic. Five area sources were defined for distributed seismicity, the least active being the host zone for which the low recurrence rates for earthquakes were substantiated through investigations of historical seismicity. Empirical ground-motion prediction equations were adjusted to a horizon within the bedrock at the site using kappa values inferred from weak-motion analyses. These adjusted models were then scaled to create new equations capturing the range of epistemic uncertainty in this region with no strong motion recordings. Surface motions were obtained by convolving the bedrock motions with site amplification functions calculated using measured shear-wave velocity profiles.
Y1  - 2015
U6  - https://doi.org/10.1193/060913EQS145M
SN  - 8755-2930
SN  - 1944-8201
VL  - 31
IS  - 2
SP  - 661
EP  - 698
PB  - Earthquake Engineering Research Institute
CY  - Oakland
ER  -