1. Research Unit of Soil Dynamics and Geotechnical Earthquake Engineering, Department of Civil Engineering, Aristotle University of Thessaloniki, P.O. Box 424, 54124 Thessaloniki, Greece, eviriga@civil.auth.gr, zroum@auth.gr, kpitilak@civil.auth.gr
2. French Alternative Energies and Atomic Energy Commission (CEA), DEN, CEA Cadarache, DPIE/SA2S, Bât. 352, F‐13108 Saint Paul Lez Durance, France, Fabrice.Hollender@cea.fr
3. Also at ISTerre, University Grenoble‐Alpes/CNRS/IFSTTAR/IRD/USMB, 38058 Grenoble, Cedex 9, France.
4. University Grenoble‐Alpes/CNRS/IFSTTAR/IRD/USMB, ISTerre, 38058 Grenoble, Cedex 9, France, Pierre-Yves.Bard@univ-grenoble-alpes.fr