At 12:51 local time on 22 February 2011 New Zealand's second largest city was struck by a close, shallow Mw 6.3 earthquake. The event caused widespread damage in the city and resulted in about 180 deaths. At the time of this writing parts of the central business district are still cordoned off because of damage to structures (particularly unreinforced masonry). It is estimated that 800 buildings in the central business district will have to be demolished, and that 10,000 of the 140,000 domestic dwellings in the city will suffer the same fate. There has been extensive liquefaction and lateral spreading...

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