The tsunami evacuation zones for Thorndon/Pipitea we used in 2014/15 were based a regional modelling project undertaken in 2008. The inundation estimates were based on an empirical ‘rule-based’ tsunami height attenuation modelling technique.
However the latest definition for the tsunami evacuation zones are a little different. These have been calculated using more detailed hydrodynamic inundation modelling of Wellington Harbour undertaken in 2015.
Former evacuation zones
Latest evacuation zones
For more information visit www.arcgis.com
The consequence is that a significant number residences, and three schools, no longer fall into a tsunami evacuation zone.
The greatest changes were for the yellow zone which is primarily for self-evacuation in the event of a strongly-felt or long-duration earthquake, or when a forecast of a distant-source tsunami of above a specific threat level is issued.
A lot more information can be discovered using the region’s online mapping resources at
http://mapping.gw.govt.nz/GW/GWpublicMap_Mobile/
Don’t wait until it’s too late! Find your home and workplace now – develop your evacuation plan and set your household/whanau/workplace meeting point.
