1. Research Assistant, DICAM—Structural Engineering, Univ. of Bologna, Viale Risorgimento 2, 40136 Bologna, Italy.
2. RCUK Fellow/Lecturer in Modeling Engineering Risk, Willis Research Fellow, Dept. of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK (corresponding author).
3. Professor of Earthquake Risk Assessment, Dept. of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.