1. 1Institute of Geosciences, University of Potsdam, Potsdam, Germany
2. 2Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Seismic Hazard and Risk Dynamics, Potsdam, Germany
3. 3European-Mediterranean Seismological Centre (EMSC), Arpajon, France
4. 4CEA, DAM, DIF, Arpajon, France
5. 5Department of Economics, University of Bergamo, Bergamo, Italy
6. 6Institute of Mathematics, University of Potsdam, Potsdam, Germany