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Yr 9 Humanities
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Christchurch earthquake

The 2011 Christchurch earthquake was a 6.3 magnitude earthquake which struck the South Island of New Zealand at 12:51 pm on 22 February 2011 NZT. (This is 23:51 21 February UTC). It was about 5 km underground. It struck the Canterbury region of the island and caused a lot of damage and many deaths in Christchurch, New Zealand's second largest city.
It was the largest aftershock of the 4 September 2010 Canterbury earthquake, although it is being regarded as a separate earthquake. It was smaller than the September earthquake, but it was more damaging because it was closer to Christchurch and nearer to the surface of the earth. It also happened at lunchtime on a Tuesday compared to before dawn on a Saturday, which meant that more people were outside and in danger of being injured by falling buildings. Buildings were also already weakened from the previous quakes. The intensity felt in Christchurch was MM VIII.
Prime Minister John Key said that 22 February "may well be New Zealand's darkest day". At least 166 people have been confirmed dead with the final death toll expected to be over 200.

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Volcanoes, earthquakes highlight Earth Science Week - GVNow - Grand Valley State University

Volcanoes, earthquakes highlight Earth Science Week #gvnow http://t.co/E7caGKr8...
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Radius of the Christchurch earthquake. 

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