2009 North Korean nuclear test
{'<entity_0>': 'North Korea', '<entity_1>': '2009 North Korean nuclear test', '<entity_2>': 'underground nuclear weapons test', '<entity_3>': '25 May 2009', '<entity_4>': '2006 North Korean nuclear test', '<entity_5>': '2013 North Korean nuclear test', '<entity_6>': '2'}
[['2009 North Korean nuclear test', 'operator', 'North Korea'], ['2009 North Korean nuclear test', 'follows', '2006 North Korean nuclear test'], ['2009 North Korean nuclear test', 'followed by', '2013 North Korean nuclear test'], ['2009 North Korean nuclear test', 'point in time', '25 May 2009'], ['2009 North Korean nuclear test', 'instance of', 'underground nuclear weapons test'], ['2009 North Korean nuclear test', 'country', 'North Korea'], ['2009 North Korean nuclear test', 'series ordinal', '2'], ['2009 North Korean nuclear test', 'start time', '25 May 2009'], ['2009 North Korean nuclear test', 'end time', '25 May 2009'], ['2009 North Korean nuclear test', 'location', 'North Korea']]
The <entity_1> was the <entity_2> of a nuclear device conducted on Monday, <entity_3> by the <entity_0>. <entity_0> (officially the <entity_0>, or DPRK) had threatened to conduct a second nuclear test in protest after the United Nations Security Council adopted a presidential statement condemning the country after it launched a rocket, which it claimed was carrying the Kwangmyŏngsŏng-<entity_6> satellite, on 5 April 2009. The state-run Korean Central News Agency (KCNA) released an announcement claiming, in part, that: The <entity_0> successfully conducted one more underground nuclear test on <entity_3> as part of the measures to bolster up its nuclear deterrent for self-defence in every way as requested by its scientists and technicians. Geophysical Service of the Russian Academy of Sciences has registered underground nuclear explosion conducted in <entity_0> on <entity_3>. The Bulletin of the Atomic Scientists asserted that the blast was more powerful than the <entity_4>, though put the yield between <entity_6> and 6 kilotons, but likely less than 4 kilotons and far short of a Hiroshima-type device. However, after the subsequent nuclear test in <entity_5>, the Federal Institute for Geosciences and Natural Resources, a state-run geology research institute in Germany, estimated the yield ranging from a minimum of 5 kilotons to the maximum of 12 kilotons and the <entity_4> ranging from minimum of 700 tons to the maximum of <entity_6> kilotons instead with relevant statistics. On 26 <entity_3>, South Korea's Yonhap news agency reported, citing officials, that <entity_0> fired three more short-range missiles off an east-coast base, one ground-to-ship missile and one surface-to-air missile. By 27 <entity_3>, at least five short range missiles were launched by <entity_0>. Another short-range missile was fired off <entity_0>'s east coast on 28 <entity_3>. On 29 <entity_3>, U.S. officials said that satellite photos revealed vehicle activity at two sites in <entity_0> suggesting that North Korean military might be preparing to launch a long-range ballistic missile. Yonhap news agency reported on <entity_6> June 2009 that <entity_0> was readying as many as three medium-range missiles (according to some analysts, Rodong missiles) at a missile base in Anbyon region, Gangwon Province, northeast of the capital of Pyongyang. On 28 May, <entity_0> threatened to end the Korean War armistice, stating that "the Korean peninsula will go back to a state of war", whereupon the joint military command of South Korea and the United States increased its surveillance alert level from WATCHCON 3 to WATCHCON <entity_6>, the second-highest level of surveillance alert.
['underground nuclear weapons test', 'underground nuclear testing']