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Canterbury Liquefaction Information
Liquefaction is the process where some soils behave more like a liquid than a solid during strong earthquake shaking. This can result in damage to buildings and infrastructure (both above and below ground), the sideways movement of land towards unsupported edges like riverbanks, and silty water being ejected onto the ground surface.
A new liquefaction storymap explains how liquefaction works, shows where liquefaction has occurred in Canterbury in past earthquakes, and provides maps of areas of different liquefaction susceptibility.