1. Department of Geology, University of Otago, Dunedin, New Zealand
2. Pattle Delamore Partners Ltd, Auckland, New Zealand
3. GNS Science, Dunedin, New Zealand
4. Community Safety Branch, Geoscience Australia, Canberra, Australia
5. GNS Science, Lower Hutt, New Zealand
6. School of Geography, Environment, and Earth Sciences, Victoria University of Wellington, Wellington, New Zealand