A staff member from Taiwan's Seismology Center explains the seismic movements believed to be caused by a North Korean nuclear test, at the Central Weather Bureau in Taipei on Feb.12, 2013. Photographer: Sam Yeh/AFP/Getty Images
A staff member from Taiwan's Seismology Center explains the seismic movements believed to be caused by a North Korean nuclear test, at the Central Weather Bureau in Taipei on Feb.12, 2013. Photographer: Sam Yeh/AFP/Getty Images
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