New Zealand - Marlborough District Tsunami Flood Hazard Areas - Marlborough Open Data

The Council engaged GNS Science to use the latest available information to assess the risk for the entire coastline of Marlborough. While the possibility of a large tsunami event occurring in Marlborough is very unlikely, the consequences could be catastrophic. GNS have mapped the potential extent of two return periods, one being a 1:500 year event and the second being a 1:2,500 year event. These return periods have been accepted nationally as appropriate and are used by all other councils to create Tsunami Evacuation Maps.