How is it that New Zealand's recent large and destructive earthquake did so little damage to the bridges in the quake zone? Mary Searle investigates. The magnitude 7.1 earthquake that hit the Canterbury region in New Zealand at 4.35am on Saturday, 4 September was similar in size to the quake that shook Haiti in January. However, the damage in Canterbury was minimal in comparison. A key contributor to this was New Zealand's preparedness for such an event. Positioned on a major fault line, New Zealand has ear