TY  - JOUR
A1  - Rodriguez-Marek, A.
A1  - Rathje, E. M.
A1  - Bommer, Julian J.
A1  - Scherbaum, Frank
A1  - Stafford, P. J.
T1  - Application of single-station sigma and site-response characterization in a probabilistic Seismic-Hazard analysis for new uclear site
JF  - Bulletin of the Seismological Society of America
N2  - Aleatory variability in ground-motion prediction, represented by the standard deviation (sigma) of a ground-motion prediction equation, exerts a very strong influence on the results of probabilistic seismic-hazard analysis (PSHA). This is especially so at the low annual exceedance frequencies considered for nuclear facilities; in these cases, even small reductions in sigma can have a marked effect on the hazard estimates. Proper separation and quantification of aleatory variability and epistemic uncertainty can lead to defensible reductions in sigma. One such approach is the single-station sigma concept, which removes that part of sigma corresponding to repeatable site-specific effects. However, the site-to-site component must then be constrained by site-specific measurements or else modeled as epistemic uncertainty and incorporated into the modeling of site effects. The practical application of the single-station sigma concept, including the characterization of the dynamic properties of the site and the incorporation of site-response effects into the hazard calculations, is illustrated for a PSHA conducted at a rock site under consideration for the potential construction of a nuclear power plant.
Y1  - 2014
U6  - https://doi.org/10.1785/0120130196
SN  - 0037-1106
SN  - 1943-3573
VL  - 104
IS  - 4
SP  - 1601
EP  - 1619
PB  - Seismological Society of America
CY  - Albany
ER  - 
TY  - JOUR
A1  - Douglas, John
A1  - Akkar, Sinan
A1  - Ameri, Gabriele
A1  - Bard, Pierre-Yves
A1  - Bindi, Dino
A1  - Bommer, Julian J.
A1  - Bora, Sanjay Singh
A1  - Cotton, Fabrice Pierre
A1  - Derras, Boumediene
A1  - Hermkes, Marcel
A1  - Kuehn, Nicolas Martin
A1  - Luzi, Lucia
A1  - Massa, Marco
A1  - Pacor, Francesca
A1  - Riggelsen, Carsten
A1  - Sandikkaya, M. Abdullah
A1  - Scherbaum, Frank
A1  - Stafford, Peter J.
A1  - Traversa, Paola
T1  - Comparisons among the five ground-motion models developed using RESORCE for the prediction of response spectral accelerations due to earthquakes in Europe and the Middle East
JF  - Bulletin of earthquake engineering : official publication of the European Association for Earthquake Engineering
N2  - This article presents comparisons among the five ground-motion models described in other articles within this special issue, in terms of data selection criteria, characteristics of the models and predicted peak ground and response spectral accelerations. Comparisons are also made with predictions from the Next Generation Attenuation (NGA) models to which the models presented here have similarities (e.g. a common master database has been used) but also differences (e.g. some models in this issue are nonparametric). As a result of the differing data selection criteria and derivation techniques the predicted median ground motions show considerable differences (up to a factor of two for certain scenarios), particularly for magnitudes and distances close to or beyond the range of the available observations. The predicted influence of style-of-faulting shows much variation among models whereas site amplification factors are more similar, with peak amplification at around 1s. These differences are greater than those among predictions from the NGA models. The models for aleatory variability (sigma), however, are similar and suggest that ground-motion variability from this region is slightly higher than that predicted by the NGA models, based primarily on data from California and Taiwan.
KW  - Strong-motion data
KW  - Ground-motion models
KW  - Ground-motion prediction equations
KW  - Style of faulting
KW  - Site amplification
KW  - Aleatory variability
KW  - Epistemic uncertainty
KW  - Europe
KW  - Middle East
Y1  - 2014
U6  - https://doi.org/10.1007/s10518-013-9522-8
SN  - 1570-761X
SN  - 1573-1456
VL  - 12
IS  - 1
SP  - 341
EP  - 358
PB  - Springer
CY  - Dordrecht
ER  -