<Table> <Tr> <Th_colspan="2"> 2006 North Korean Nuclear Test </Th> </Tr> <Tr> <Td_colspan="2"> Graphic showing seismic activity at the time of the test </Td> </Tr> <Tr> <Th_colspan="2"> Information </Th> </Tr> <Tr> <Th> Country </Th> <Td> North Korea </Td> </Tr> <Tr> <Th> Test site </Th> <Td> Punggye - ri Nuclear Test Site, Kilju County . </Td> </Tr> <Tr> <Th> Period </Th> <Td> 10: 35: 28 KST, October 9, 2006 </Td> </Tr> <Tr> <Th> Number of tests </Th> <Td> </Td> </Tr> <Tr> <Th> Test type </Th> <Td> Unknown </Td> </Tr> <Tr> <Th> Device type </Th> <Td> Fission </Td> </Tr> <Tr> <Th> Max . yield </Th> <Td> <Ul> <Li> 0.48 kilotons of TNT (2.0 TJ) (Chinese academics) </Li> <Li> 0.55--12 kilotons of TNT (2.3--50.2 TJ) (Jane's Defence Weekly & South Korean estimates, but raised doubts on the lower end estimates because it does not correspond with the 4.2 Richter scale) </Li> <Li> 5--15 kilotons of TNT (21--63 TJ) </Li> <Li> 0.7--2 kilotons of TNT (2.9--8.4 TJ) (Estimations from Federal Institute for Geosciences and Natural Resources) </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Test chronology </Th> </Tr> <Tr> <Td_colspan="2"> ← None 2009 test → </Td> </Tr> </Table> <Tr> <Th_colspan="2"> 2006 North Korean Nuclear Test </Th> </Tr>

When did north korea set off its first nuclear bomb