1. Benfield-UCL Hazard Research Centre, Department of Earth Sciences, University College London, Gower Street, WC1E 6BT London, UK
2. Natural Hazards Laboratory, Department of Dynamic, Tectonic and Applied Geology, Faculty of Geology and Geoenvironment, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 157-84 Athens, Greece