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Liquefaction following earthquake in New Zealand

Geoff Sloan / New Zealand Herald via AP

This aerial photo shows the Burwood and New Brighton areas damaged by liquefaction after a 5.8-magnitude quake struck Christchurch, New Zealand, Friday Dec 23, 2011. A series of strong earthquakes struck Christchurch on Friday, rattling buildings, sending goods tumbling from shelves and prompting terrified holiday shoppers to flee into the streets. There was no tsunami alert issued and the city appeared to have been spared major damage.

Simon Baker / Reuters

Sewage (bottom and right) spreads past a car trapped in a sink hole caused by liquefaction in the Christchurch suburb of Parklands after an earthquake struck December 23, 2011.

A series of strong earthquakes struck the New Zealand city of Christchurch on Friday, rattling buildings, sending goods tumbling from shelves and prompting terrified holiday shoppers to flee into the streets. There was no tsunami alert issued and the city appeared to have been spared major damage. Continue reading...