2013 North Korean nuclear test | |
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Information | |
Country | North Korea |
Test site | 41°18′N 129°05′E / 41.30°N 129.08°E,[1] Punggye-ri Nuclear Test Site, Kilju County |
Period | 11:57:51, 12 February 2013[1] | KST
Number of tests | 1 |
Test type | Underground |
Device type | Fission |
Max. yield |
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Test chronology | |
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On 12 February 2013, North Korean state media announced it had conducted an underground nuclear test, its third in seven years. A tremor that exhibited a nuclear bomb signature with an initial magnitude 4.9 (later revised to 5.1) was detected by the China Earthquake Networks Center,[9] Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization[10] and the United States Geological Survey.[1] In response, Japan summoned an emergency United Nations meeting for 12 February and South Korea raised its military alert status. It is not known whether the explosion was nuclear, or a conventional explosion designed to mimic a nuclear blast;[11] as of two days after the blast, Chinese, Japanese, and South Korean investigators had failed to detect any radiation.[12]