north korean nuclear test north korean nuclear test underground nuclear device conducted monday second nuclear test test having taken place october following nuclear test conducted missile tests scientific paper later estimated yield test nearly universally condemned international community following test passed resolution condemning test sanctions country widely believed test conducted result succession crisis country suffered stroke summer arrangements son power death believed north conducted nuclear test time possible weakness intend nuclear weapons program background north_korea officially threatened conduct second nuclear test protest adopted presidential statement condemning country launched rocket claimed carrying satellite april launch condemned nations describing intercontinental missile test test came recent messages stating north_korea nuclear medium range missiles country recognized analysts fully fledged nuclear power june announced intended successor north korean leader government analysts speculated purpose nuclear test establish north_korea nuclear power lifetime north korean statements citing specific time notified washington beijing test hour actual occurred monday promptly contacted party talks members state run released announcement claiming successfully conducted underground nuclear test measures bolster nuclear self defence way requested scientists technicians current nuclear test safely conducted new higher level terms explosive power technology control results test helped settle scientific technological problems arising increasing power nuclear weapons steadily developing nuclear technology interpreted referring disputes low yield test seismic activity south_korea japan reported seismic activity utc reported magnitude earthquake depth zero center kilometres northwest kilometres northeast kilometres country nuclear test site measured seismic activity magnitude reported seismic activity area far stronger confirmed detected nuclear north_korea data determine yield registered underground nuclear explosion conducted north_korea registration time explosion moscow time magnitude china felt borders north_korea forced students local schools evacuated test believed taken place vicinity korean site nuclear test held analysis test yield analysts generally agreed nuclear test successful despite uncertainty exact yield intelligence community assessed north_korea probably conducted nuclear test yield comprehensive test ban treaty organization preparatory commission assessed yield slightly larger test based readings seismic stations estimated blast seismic magnitude corresponding explosive yield compared seismic magnitude corresponding yield blast russia placed yield test significantly higher approximately yield fat man trinity bombs developed united_states world war test russians estimated far higher yield sources estimated yield defense minister south_korea said data needed yield analyst estimated yield successful test compared test cautioned early news media reports hiroshima size nuclear explosion bulletin atomic scientists asserted blast powerful test yield likely far short hiroshima type device group concluded bomb failed detonate correctly case potential weapon dismissed subsequent nuclear test state run geology research institute germany estimated yield ranging minimum maximum test ranging minimum tons maximum instead relevant statistics lack confirmation june comprehensive nuclear test ban treaty organization announced detected associated event time test global network included sampling stations addition united_states reported detected aircraft korea south_korea reported detected contrast detected locations event lack detection mean event non nuclear reasonable nuclear test yield buried deep appropriate rock yield remotely makes difficult prove test nuclear missile tests day north_korea conducted short range surface air missile tests number fired missiles reported corrected south korean defense ministry missile range south korean news agency cited military officials saying launches aimed keeping japanese surveillance planes away site south_korea reported citing officials north_korea fired short range missiles east coast base ground ship missile surface air missile came diplomats began work resolution punish north_korea underground nuclear test short range missiles launched north_korea military spokesman quoted official media said north_korea longer guarantee safety shipping west coast suggesting missile fired direction short range missile fired north_korea east coast officials said satellite photos revealed vehicle activity sites north_korea suggesting north korean military preparing launch long range missile reaffirmed june defense secretary said news conference philippine counterpart brief visit manila seen signs missile point clear news agency reported june north_korea medium range missiles according analysts missiles missile base region northeast capital addition south korean defence ministry spokesman said signs north_korea preparing fire intercontinental missile detected defense officials reports defense secretary statement june north_korea apparently moved new base west coast launch place weeks according international reaction north korean news agency confirmed test successful agency said test aimed strengthening self defense nuclear way south_korea reported citing citizens held rally celebrate country second successful nuclear test general international reactions north korean nuclear test uniformly negative members party talks south_korea president called emergency cabinet meeting decision join security initiative north repeatedly warned declaration war raised surveillance condition important indications threat vital indications threat president statement beginning republic korea commemorative summit saying continue work north_korea observe resolutions north_korea permanent military mission north south joint security area reacted decision join security initiative saying longer bound korean war armistice militarily respond foreign attempt inspect ships released statement ignored universal opposition international community conducted nuclear test chinese government opposed statement strongly demanded north_korea return tracks party talks japan japan said test unacceptable violation resolutions considering sanctions response russia stated latest steps tensions regional security stability violated added think nuclear problem resolved nation negotiations russian president said russia seriously concerned nuclear test russian competent services express regret voice concern nuclear test area adjacent united_states white_house condemned test saying north_korea directly challenging international community danger posed north_korea threatening activities action international community president barack_obama official statement promised north_korea find international acceptance complied said country actions pose grave threat peace stability world ambassador added north_korea needs understand actions consequences pay price action form sanctions defense secretary delivered stark warning north_korea policy united_states changed said goal complete korean peninsula accept north_korea nuclear weapons state aftermath news tests immediately affected south korean markets sending main share index south korean won dropped day nuclear test fell dollar level north_korea threatened end korean war armistice stating korean peninsula state war joint military command south_korea united_states increased surveillance alert level second highest level surveillance alert stage combat alert level remained second lowest level russia undertook security measures case war nerves korean peninsula erupted nuclear war north_korea threatened attack south korean warships near coast sovereignty japan policy debate ensued strengthening military including possibility independent pre strike capability nuclear armaments subjects hitherto taboo united_kingdom confirmed tanker plane air air sent air base okinawa japan help support investigations led military determine power nuclear explosion type material ministry spokesman said following recent events north_korea support international community efforts time increased political tension confirm supporting associated efforts day fighter jet arrived air base approximately members deployed theatre security package deputy secretary state accompanied special envoy north_korea led delegation asia june consult regional forces respond north_korea latest nuclear test delegation includes treasury secretary terrorism financial intelligence admiral japan approved june plans satellite missile early warning system new space policy document year japan dropped decades old ban military use space ruling party suggesting japan inspect north korean ships wake reports preparing fire mid range missiles day response increased activity korean military reports north stepped naval drills near western sea border site deadly skirmishes south_korea deployed high speed naval vessel guided missile patrol boat area vowed punish attacking forces north korean nuclear test approved sale number weapon systems south_korea including bunker bombs standard surface air missiles block aircraft upgrades improving aircraft increasing south korean military operational abilities south korean military prepared plans counter attack event strike north_korea resolution unanimously adopted resolution response test imposing economic sanctions country member states inspect north korean cargo destroy involved nuclear weapons program response sanctions unidentified spokesman released statement official saying country begin spokesman said country start view led attempts blockade act war statement said lacked usual bitterness north korean statements
2009 North Korean nuclear test