North Korea nuclear test

On February 12, 2013, North Korea unleashed its third - and largest - underground nuclear test, causing an earthquake with a magnitude of 4.9. The Foreign Ministry in Pyongyang said the test was the "first response" to what it called US threats. The test defied a UN move tightening sanctions against leader Kim Jong-un's regime three weeks before. The UN Security Council strongly condemned the test and vowed to take action against Pyongyang for an act that all major world powers, including traditional ally China, denounced.

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