Delavaud E. auteur aut IRD Cotton F. auteur aut IRD Akkar S. auteur aut IRD Scherbaum F. auteur aut IRD Danciu L. auteur aut IRD Beauval Céline auteur aut IRD Drouet S. auteur aut IRD Douglas J. auteur aut IRD Basili R. auteur aut IRD Sandikkaya M. A. auteur aut IRD Segou M. auteur aut IRD Faccioli E. auteur aut IRD Theodoulidis N. auteur aut IRD text journalArticle eng text/pdf born digital access The Seismic Hazard Harmonization in Europe (SHARE) project, which began in June 2009, aims at establishing new standards for probabilistic seismic hazard assessment in the Euro-Mediterranean region. In this context, a logic tree for ground-motion prediction in Europe has been constructed. Ground-motion prediction equations (GMPEs) and weights have been determined so that the logic tree captures epistemic uncertainty in ground-motion prediction for six different tectonic regimes in Europe. Here we present the strategy that we adopted to build such a logic tree. This strategy has the particularity of combining two complementary and independent approaches: expert judgment and data testing. A set of six experts was asked to weight pre-selected GMPEs while the ability of these GMPEs to predict available data was evaluated with the method of Scherbaum et al. (Bull Seismol Soc Am 99:3234-3247, 2009). Results of both approaches were taken into account to commonly select the smallest set of GMPEs to capture the uncertainty in ground-motion prediction in Europe. For stable continental regions, two models, both from eastern North America, have been selected for shields, and three GMPEs from active shallow crustal regions have been added for continental crust. For subduction zones, four models, all non-European, have been chosen. Finally, for active shallow crustal regions, we selected four models, each of them from a different host region but only two of them were kept for long periods. In most cases, a common agreement has been also reached for the weights. In case of divergence, a sensitivity analysis of the weights on the seismic hazard has been conducted, showing that once the GMPEs have been selected, the associated set of weights has a smaller influence on the hazard. specialized Logic trees Ground-motion prediction equations Expert judgment Model selection Seismic hazard assessment 066 16 3 451-473 2012 1383-4649 https://www.documentation.ird.fr/hor/fdi:010055944 10.1007/s10950-012-9281-z 1383-4649 [F B010055944] https://www.documentation.ird.fr/hor/fdi:010055944 https://www.documentation.ird.fr/intranet/publi/2012/07/010055944.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2012-07-24 2017-08-23 fdi:010055944 fre