1. Swiss Seismological Service, ETH Zürich, Sonneggstrasse 5, 8092 Zürich, Switzerland, nandans@ethz.ch, stefan.wiemer@sed.ethz.ch
2. Lithophyse, 4 rue de l’Ancien Sénat, 06300 Nice, France, Ouillon@aol.com
3. Department of Management, Technology and Economics, ETH Zürich, Scheuchzerstrasse 7, 8092 Zürich, Switzerland, dsornette@ethz.ch