1. Associate Professor, School of Engineering, Univ. of Warwick, Coventry CV4 7AL, U.K.; formerly, Lecturer, Univ. of Oxford, Oxford OX1 3PJ, U.K.; formerly, Postdoctoral Research Fellow, Dept. of Civil Engineering, Univ. of Strathclyde, Glasgow G1 1XQ, U.K. (corresponding author).
2. Associate Professor, Dept. of Earth and Environmental Sciences, Univ. degli Studi di Milano-Bicocca, Milano 20126, Italy.
3. Assistant Professor, Dept. of Civil and Environmental Engineering, Politecnico di Milano, Milano 20133, Italy.
4. Lecturer, Dept. of Civil Engineering, Univ. of Strathclyde, Glasgow G1 1XQ, U.K.