8.7-magnitude earthquake off Sumatra

CHRISTCHURCH, NEW ZEALAND - AUGUST 05: A building is demolished by controlled explosions on August 5, 2012 in Christchurch, New Zealand. The 14-story Radio Network House building in Worcester St, is the first of its kind in the city to be blown up in a controlled demolition since authorities began the massive task of bringing down the hundreds of quake-damaged buildings. The building was badly damaged in the magnitude-6.3 February 22, 2011 ... more 

CHRISTCHURCH, NEW ZEALAND - AUGUST 05: A building is demolished by controlled explosions on August 5, 2012 in Christchurch, New Zealand. The 14-story Radio Network House building in Worcester St, is the first of its kind in the city to be blown up in a controlled demolition since authorities began the massive task of bringing down the hundreds of quake-damaged buildings. The building was badly damaged in the magnitude-6.3 February 22, 2011 earthquake. (Photo by Martin Hunter/Getty Images) less