000010296 001__ 10296
000010296 005__ 20141205155712.0
000010296 04107 $$aeng
000010296 046__ $$k2008-10-12
000010296 100__ $$aHumbert, Nicolas
000010296 24500 $$aAn Evaluation of Epistemic and Random Uncertainties Included in Attenuation Relationship Parameters

000010296 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010296 260__ $$b
000010296 506__ $$arestricted
000010296 520__ $$2eng$$aAttenuation relationships are generally built in a deterministic way: based on physical considerations, the overall process (including stability tests) focuses on obtaining median values (median from epistemic and random variability). According to this point of view the magnitude, depth and localization of data base earthquakes are supposed to be perfectly estimated. The objective of the paper is to present a stochastic method that allows to take into account these uncertainties of data base at the regression step of the attenuation relationship. This method is applied on a European Strong Motion Database with three steps: (i) an evaluation of data base uncertainties, (ii) a regression taking into account the fuzzy data base, (iii) an estimation of model uncertainties. Finally this paper (i) presents a method which allows to build appropriate attenuation relationships for PSHA and clearly shows that (ii) the usual methods used to build attenuation relationships overestimate random variability and underestimate epistemic variability, introducing bias in PSHA.

000010296 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010296 653__ $$aAttenuation Relationship, random variability, epistemic uncertainties

000010296 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010296 720__ $$aHumbert, Nicolas$$iViallet, Emmanuel
000010296 8560_ $$ffischerc@itam.cas.cz
000010296 8564_ $$s353260$$uhttps://invenio.itam.cas.cz/record/10296/files/07-0117.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 07-0117.
000010296 962__ $$r9324
000010296 980__ $$aPAPER