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Ground-shaking causes some soils to behave like liquid causing
structures to sink, tilt or topple.

This series of four map sheets, with accompanying booklet, has been
compiled to describe the liquefaction and ground damage hazard for the
main metropolitan areas in the western part of the Region

For the purpose of this study, the region has been divided into five study
areas:

Sheet 1 – Wellington
Sheet 2 – Porirua
Sheet 3 – Hutt Valley
Sheet 4 - Kapiti

The liquefaction hazard in the Wairarapa is summarised in booklet form
only.