1. Natural Hazards Research Group, Dept. of Geological Sciences, Univ. of Canterbury, Private Bag 4800, Christchurch 8041, New Zealand (corresponding author).
2. Natural Hazards Research Group, Dept. of Geological Sciences, Univ. of Canterbury, Private Bag 4800, Christchurch 8041, New Zealand.
3. Vice-Chancellor’s Office, Univ. of Canterbury, Private Bag 4800, Christchurch 8041, New Zealand.
4. Joint Center for Disaster Research, Massey Univ., P.O. Box 756, Wellington 6140, New Zealand; Risk and Society, GNS Science, P.O. Box 30-368, Lower Hutt 5040, New Zealand.
5. Science and Education, Earthquake Commission, P.O. Box 790, Wellington, New Zealand.