NORTH KOREA, NUCLEAR TESTS

NORTH KOREA 

NUCLEAR TESTS

                             

North Korea's nuclear tests series tests and detonations

Name[note 1]	Date time (UT)	Localtime zone[note 2][1]	Location [note 3]	Elevation+ height[note 4]	Delivery,[note 5] Purpose[note 6]	Device[note 7]	Yield[note 8]	Fallout[note 9]	References	Notes
(1)	9 October 200601:35:27	KST (9 hrs)	Punggye-ri Test Site, North Korea 41.28505°N 129.1084°E	1,340 m (4,400 ft) - 310 m (1,020 ft)	underground,		1 kt		[2]	Possibly afizzle. East Tunnel approximately 1 km NE from the entrance.
(2)	25 May 200900:54:43	KST (9 hrs)	Punggye-ri Test Site, North Korea 41.29142°N 129.08167°E	1,340 m (4,400 ft) - 490 m (1,610 ft)	underground,		2 - 4 kt		[3][4]	West Tunnel at about 1.2 km NW from the tunnel entrance.
(3)	12 February 201302:57:51	KST (9 hrs)	Punggye-ri Test Site, North Korea 41.26809°N 129.08076°E	1,340 m (4,400 ft) - 1,000 m (3,300 ft)	underground,		6 - 9 kt		[3][5]	Likely the test took place in the West Tunnel. South tunnel damaged by flooding in 2012.
(4)	6 January 201610:00:02	KST (8:30 hrs)	Punggye-ri Test Site, North Korea 41.30900°N 129.03399°E		underground,		7 - 10 kt[6]		[7]	Claimed to be a hydrogen bomb.

1. Jump up^ The US, France and Great Britain have code-named their test events, while the USSR and China did not, and therefore have only test numbers (with some exceptions – Soviet peaceful explosions were named). Word translations into English in parentheses unless the name is a proper noun. A dash followed by a number indicates a member of a salvo event. The US also sometimes named the individual explosions in such a salvo test, which results in "name1 – 1(with name2)". If test is canceled or aborted, then the row data like date and location discloses the intended plans, where known.
2. Jump up^ To convert the UT time into standard local, add the number of hours in parentheses to the UT time; for local daylight saving time, add one additional hour. If the result is earlier than 00:00, add 24 hours and subtract 1 from the day; if it is 24:00 or later, subtract 24 hours and add 1 to the day. All historical timezone data are derived from here:
3. Jump up^ Rough place name and a latitude/longitude reference; for rocket-carried tests, the launch location is specified before the detonation location, if known. Some locations are extremely accurate; others (like airdrops and space blasts) may be quite inaccurate. "~" indicates a likely pro-forma rough location, shared with other tests in that same area.
4. Jump up^ Elevation is the ground level at the point directly below the explosion relative to sea level; height is the additional distance added or subtracted by tower, balloon, shaft, tunnel, air drop or other contrivance. For rocket bursts the ground level is "N/A". In some cases it is not clear if the height is absolute or relative to ground, for example, Plumbbob/John. No number or units indicates the value is unknown, while "0" means zero. Sorting on this column is by elevation and height added together.
5. Jump up^ Atmospheric, airdrop, balloon, gun, cruise missile, rocket, surface, tower, and barge are all disallowed by the Partial Nuclear Test Ban Treaty. Sealed shaft and tunnel are underground, and remained useful under the PTBT. Intentional cratering tests are borderline; they occurred under the treaty, were sometimes protested, and generally overlooked if the test was declared to be a peaceful use.
6. Jump up^ Include weapons development, weapon effects, safety test, transport safety test, war, science, joint verification and industrial/peaceful, which may be further broken down.
7. Jump up^ Designations for test items where known, "?" indicates some uncertainty about the preceding value, nicknames for particular devices in quotes. This category of information is often not officially disclosed.
8. Jump up^ Estimated energy yield in tons, kilotons, and megatons. A ton of TNT equivalent is defined as 4.184 gigajoules (1 gigacalorie).
9. Jump up^ Radioactive emission to the atmosphere aside from prompt neutrons, where known. The measured species is only iodine-131 if mentioned, otherwise it is all species. No entry means unknown, probably none if underground and "all" if not; otherwise notation for whether measured on the site only or off the site, where known, and the measured amount of radioactivity released.