File photo shows the damaged Christchurch Cathedral in the New Zealand South Island city of Christchurch in September 2011. The 6.3-magnitude quake that killed 185 people in Christchurch in February ... more 

File photo shows the damaged Christchurch Cathedral in the New Zealand South Island city of Christchurch in September 2011. The 6.3-magnitude quake that killed 185 people in Christchurch in February last year lasted just 37 seconds and struck at a depth of about 5 km less