8.7-magnitude earthquake off Sumatra

A man points at a seismic chart at the Central Weather Bureau in Taipei on March 4, 2010. A 7.4 magnitude earthquake struck 255 kilometres southwest of Tonga early Friday, according to the US Geological Survey

A man points at a seismic chart at the Central Weather Bureau in Taipei on March 4, 2010. A 7.4 magnitude earthquake struck 255 kilometres southwest of Tonga early Friday, according to the US Geological Survey