Natural Hazards and Earth System Science www.nat-hazards-earth-syst-sci.net 1561-8633 1684-9981 1 1/2 2001 10.5194/nhess-1-1-2001 http://www.nat-hazards-earth-syst-sci.net/1/1/2001/ http://www.nat-hazards-earth-syst-sci.net/1/1/2001/nhess-1-1-2001.html http://www.nat-hazards-earth-syst-sci.net/1/1/2001/nhess-1-1-2001.pdf 1 1 0000-00-00 Preface M. E. Contadakis P. F. Biagi No abstract