Latest Korea nuke test dwarfed previous ones: Seismic waves show steady progress to bigger bomb, scientists say
Wednesday, February 13, 2013 - 09:00
in Earth & Climate
A nuclear test explosion set off last night by North Korea was far larger—perhaps by three or four times—than the country's last known blast, say seismologists who have examined seismic waves coming from the site. The estimate suggests that the North Koreans are making steady progress toward building more forceful weapons.