Yoram Rubin, Department of Civil and Environmental Engineering, University of California at Berkeley, 435 Davis Hall, Berkeley, CA 94720. ([email protected], [email protected]) Alberto Bellin, Dipartimento di Ingegneria Civile ed Ambientale, Università di Trento, via Mesiano 77, I-38050 Trento (Italy). ([email protected]) and Alison E. Lawrence and , Department of Civil and...