1. Section for Natural Hazards Norwegian Geotechnical Institute 3930 Ullevaal Stadion Oslo N‐0806 Norway
2. Division of Geosciences and Environmental Engineering Luleå University of Technology Luleå 97187 Sweden
3. Mining Inspectorate of Sweden Varvsgatan 41 Luleå 97232 Sweden
4. Division of Mining and Geotechnical Engineering Luleå University of Technology Luleå 97187 Sweden