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Wellington Region Tsunami Evacuation Zones

Greater Wellington Regional Council
  • Added 10 Feb 2012

Wellington Region Tsunami Evacuation Zones. Wellington region tsunami evacuation data containing three zones; red, orange and yellow, corresponding to different threat levels.

The layer was manually digitised onto orthophoto coverage based on raw polygon data derived from tsunami modelling and verified with elevation data to ensure accuracy and consistency.

The zones are based on probabilistic tsunami wave heights derived from previously recorded events that have affected the Wellington region and modelling tsunami from known source areas.

The risk varies around the Wellington region. It is highest along the Wairarapa and south coast, moderate around Wellington Harbour and low to moderate around Porirua and along the Kapiti Coast.


Creative Commons Attribution-No Derivative Works 3.0

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CategoryScience & Environment
Tagstsunami, evacuation zones, earthquake, Hazard
RegionsWellington City, Porirua City, Lower Hutt City, Kapiti Coast District
MetadataFGDC CSDGM, Dublin Core

Technical Details

Layer ID 4025
Data type Vector multipolygon
Feature count 28
Attributes Info, Col_Code, Heights, Evac_Zone, Zone_Class, Location
Services Vector Query API, Web Feature Service (WFS)


Added10 Feb 2012
Revisions 1 - Browse all revisions
Current revision Imported on Feb. 9, 2012 from Esri JSON in NZGD2000 / New Zealand Transverse Mercator 2000.
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