1971 Soviet nuclear tests

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1971
Information
Country Soviet Union
Test site Arkhangelsk, Russia; Atyrau, Kazakhstan; Balapan, Semipalatinsk, Kazakhstan; Degelen, Semipalatinsk, Kazakhstan; Ivanovo, Russia; Komi, Russia; NZ Area B, Matochkin Shar, Novaya Zemlya, Russia; Orenburg, Russia; Perm, Russia; Sary-Uzen/Murzhik, Semipalatinsk, Kazakhstan
Period 1971
Number of tests 23
Test type cratering, underground shaft, underground tunnel
Max. yield 2.4 megatonnes of TNT (10 PJ)
Navigation
Previous test series 1970 Soviet nuclear tests
Next test series 1972 Soviet nuclear tests

The Soviet Union's 1971 nuclear test series[1] was a group of 23 nuclear tests conducted in 1971. These tests [note 1] followed the 1970 Soviet nuclear tests series and preceded the 1972 Soviet nuclear tests series.

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See also: List of nuclear weapons tests of the Soviet Union
Soviet Union's 1971 series tests and detonations
Name [note 2] Date time (UT) Local time zone [note 3][2] Location [note 4] Elevation + height [note 5] Delivery, [note 6]
Purpose [note 7]		 Device [note 8] Yield [note 9] Fallout [note 10] References Notes
332 29 January 1971 05:03:00.0 ALMT (6 hrs)
 Degelen, Semipalatinsk, Kazakhstan: 114 Lua error in package.lua at line 80: module 'strict' not found. 657 m (2,156 ft) + underground tunnel,
weapon effect		 1.8 kt [1][3][4][5][6]
333 22 March 1971 04:33:00.3 ALMT (6 hrs)
 Degelen, Semipalatinsk, Kazakhstan: 510p Lua error in package.lua at line 80: module 'strict' not found. 656 m (2,152 ft) + underground tunnel,
peaceful research		 67 kt [1][4][5][6][7]
334 22 March 1971 04:33:?? ALMT (6 hrs)
 Degelen, Semipalatinsk, Kazakhstan: 807 Lua error in package.lua at line 80: module 'strict' not found. 601 m (1,972 ft) + underground tunnel,
weapons development		 unknown yield [1][4][5][6][8]
335 Taiga - 1 23 March 1971 06:59:58.4 SVET (5 hrs)
 Perm, Russia: 1B Lua error in package.lua at line 80: module 'strict' not found. - 128 m (420 ft) cratering,
earth moving		 15 kt [1][4][5][6][7] Excavation for canal.
335 Taiga - 2 23 March 1971 06:59:58 SVET (5 hrs)
 Perm, Russia: 2B Lua error in package.lua at line 80: module 'strict' not found. - 128 m (420 ft) cratering,
industrial		 15 kt [1][4][5][6][8] Excavation for canal.
335 Taiga - 3 23 March 1971 06:59:58 SVET (5 hrs)
 Perm, Russia: 3B Lua error in package.lua at line 80: module 'strict' not found. - 128 m (420 ft) cratering,
industrial		 15 kt [1][4][5][6][8] Excavation for canal.
336 9 April 1971 02:33:00.0 ALMT (6 hrs)
 Degelen, Semipalatinsk, Kazakhstan: 148/1 Lua error in package.lua at line 80: module 'strict' not found. 632 m (2,073 ft) + underground tunnel,
industrial		 230 t [1][4][5][6][8][9] Tested a special device for keeping radiactivity from invading ore bodies when using a bomb to fracture them.
337 25 April 1971 03:32:59.9 ALMT (6 hrs)
 Degelen, Semipalatinsk, Kazakhstan: 706 Lua error in package.lua at line 80: module 'strict' not found. 689 m (2,260 ft) + underground tunnel,
weapons development		 90 kt [1][4][5][6][7]
338 25 May 1971 04:03:00.4 ALMT (6 hrs)
 Degelen, Semipalatinsk, Kazakhstan: 119 Lua error in package.lua at line 80: module 'strict' not found. 761 m (2,497 ft) + underground tunnel,
weapons development		 9 kt [1][4][5][6][7]
339 6 June 1971 04:02:59.7 ALMT (6 hrs)
 Sary-Uzen/Murzhik, Semipalatinsk, Kazakhstan: 110 Lua error in package.lua at line 80: module 'strict' not found. 460 m (1,510 ft) + underground shaft,
weapons development		 16 kt [1][4][5][6][7]
340 19 June 1971 04:04:00.1 ALMT (6 hrs)
 Sary-Uzen/Murzhik, Semipalatinsk, Kazakhstan: 129 Lua error in package.lua at line 80: module 'strict' not found. 460 m (1,510 ft) + underground shaft,
weapons development		 35 kt [1][4][5][6][7]
341 30 June 1971 03:56:59.8 ALMT (6 hrs)
 Balapan, Semipalatinsk, Kazakhstan: 1056 Lua error in package.lua at line 80: module 'strict' not found. 330 m (1,080 ft) + underground shaft,
weapons development		 5 kt [1][4][5][6][7]
342 Globus 4 2 July 1971 17:00:01.1 MSK (3 hrs)
 Komi, Russia: GB-4 Lua error in package.lua at line 80: module 'strict' not found. - 540 m (1,770 ft) underground shaft,
seismic sounding		 2.3 kt [1][5][6][7][8] Seismic probing program.
343 Globus 3 10 July 1971 17:00:01.4 MSK (3 hrs)
 Komi, Russia: GB-3 Lua error in package.lua at line 80: module 'strict' not found. - 470 m (1,540 ft) underground shaft,
seismic sounding		 2.3 kt [1][5][6][7][8] Seismic probing program.
344 Globus 1 19 September 1971 11:00:01.1 MSK (3 hrs)
 Ivanovo, Russia: GB-1 Lua error in package.lua at line 80: module 'strict' not found. - 610 m (2,000 ft) underground shaft,
seismic sounding		 2.3 kt Venting detected [1][5][6][7][8] Seismic probing program.
345 - 1 27 September 1971 05:59:55.75 MSK (3 hrs)
 NZ Area B, Matochkin Shar, Novaya Zemlya, Russia: A-8 Lua error in package.lua at line 80: module 'strict' not found. 100 m (330 ft) - 1,200 m (3,900 ft) underground tunnel,
weapons development		 2.5 Mt Venting detected off site, 15 Ci (560 GBq) [1][3][5][6][7]
345 - 2 27 September 1971 05:59:55.8 MSK (3 hrs)
 NZ Area B, Matochkin Shar, Novaya Zemlya, Russia: A-8 Lua error in package.lua at line 80: module 'strict' not found. 100 m (330 ft) + underground tunnel,
weapons development		 unknown yield [1][5][6][8][10]
345 - 3 27 September 1971 05:59:55.8 MSK (3 hrs)
 NZ Area B, Matochkin Shar, Novaya Zemlya, Russia: A-8 Lua error in package.lua at line 80: module 'strict' not found. 100 m (330 ft) + underground tunnel,
weapons development		 unknown yield [1][5][6][8][10]
345 - 4 27 September 1971 05:59:55.8 MSK (3 hrs)
 NZ Area B, Matochkin Shar, Novaya Zemlya, Russia: A-8 Lua error in package.lua at line 80: module 'strict' not found. 100 m (330 ft) + underground tunnel,
weapons development		 unknown yield [1][5][6][8][10]
346 Globus 2 4 October 1971 10:00:00.1 MSK (3 hrs)
 Arkhangelsk, Russia: GB-2 Lua error in package.lua at line 80: module 'strict' not found. - 595 m (1,952 ft) underground shaft,
seismic sounding		 2.3 kt [1][5][6][7][8] Seismic probing program.
347 9 October 1971 06:02:59.7 ALMT (6 hrs)
 Sary-Uzen/Murzhik, Semipalatinsk, Kazakhstan: 111 Lua error in package.lua at line 80: module 'strict' not found. 460 m (1,510 ft) + underground shaft,
weapons development		 12 kt Venting detected [1][4][5][6][7]
348 21 October 1971 06:02:59.7 ALMT (6 hrs)
 Sary-Uzen/Murzhik, Semipalatinsk, Kazakhstan: 127 Lua error in package.lua at line 80: module 'strict' not found. 460 m (1,510 ft) + underground shaft,
weapons development		 23 kt [1][4][5][6][7]
349 Sapfir (Sapphire) 22 October 1971 05:00:01.0 SVET (5 hrs)
 Orenburg, Russia: E-2 Lua error in package.lua at line 80: module 'strict' not found. - 1,140 m (3,740 ft) underground shaft,
cavity excavation		 15 kt [1][5][6][7][8] Create reservoirs for gas storage.
350 - 1 29 November 1971 06:02:59.9 ALMT (6 hrs)
 Degelen, Semipalatinsk, Kazakhstan: 105 Lua error in package.lua at line 80: module 'strict' not found. 766 m (2,513 ft) + underground tunnel,
weapons development		 28 kt [1][4][5][6][7]
350 - 2 29 November 1971 06:02:59.9 ALMT (6 hrs)
 Degelen, Semipalatinsk, Kazakhstan: 105 Lua error in package.lua at line 80: module 'strict' not found. 766 m (2,513 ft) + underground tunnel,
weapons development		 unknown yield [1][4][5][6][8]
351 15 December 1971 07:53:59.8 ALMT (6 hrs)
 Degelen, Semipalatinsk, Kazakhstan: 157 Lua error in package.lua at line 80: module 'strict' not found. 691 m (2,267 ft) - 115 m (377 ft) underground tunnel,
weapon effect		 6 kt [1][4][5][6][7]
352 Galit A3 (Halite) 22 December 1971 06:59:59.0 SHET (5 hrs)
 Atyrau, Kazakhstan: A-III Lua error in package.lua at line 80: module 'strict' not found. - 987 m (3,238 ft) underground shaft,
industrial		 64 kt [1][5][6][7][8] Create reservoirs for gas storage; reused the cavity for test #437.
353 30 December 1971 06:21:00.2 ALMT (6 hrs)
 Degelen, Semipalatinsk, Kazakhstan: 809 Lua error in package.lua at line 80: module 'strict' not found. 714 m (2,343 ft) + underground tunnel,
weapons development		 50 kt [1][4][5][6][7]
354 30 December 1971 06:21:?? ALMT (6 hrs)
 Degelen, Semipalatinsk, Kazakhstan: 609 Lua error in package.lua at line 80: module 'strict' not found. 715 m (2,346 ft) + underground tunnel,
weapons development		 unknown yield [1][4][5][6][8]
  1. ↑ A bomb test may be a salvo test, defined as two or more explosions "where a period of time between successive individual explosions does not exceed 5 seconds and where the burial points of all explosive devices can be connected by segments of straight lines, each of them connecting two burial points and does not exceed 40 kilometers in length". Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ 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.
  3. ↑ 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:
  4. ↑ 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.
  5. ↑ 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.
  6. ↑ 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.
  7. ↑ Include weapons development, weapon effects, safety test, transport safety test, war, science, joint verification and industrial/peaceful, which may be further broken down.
  8. ↑ 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.
  9. ↑ Estimated energy yield in tons, kilotons, and megatons. A ton of TNT equivalent is defined as 4.184 gigajoules (1 gigacalorie).
  10. ↑ 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.

References

  1. ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.20 1.21 1.22 1.23 1.24 1.25 1.26 1.27 1.28 1.29 Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ 5.00 5.01 5.02 5.03 5.04 5.05 5.06 5.07 5.08 5.09 5.10 5.11 5.12 5.13 5.14 5.15 5.16 5.17 5.18 5.19 5.20 5.21 5.22 5.23 5.24 5.25 5.26 5.27 5.28 Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ 6.00 6.01 6.02 6.03 6.04 6.05 6.06 6.07 6.08 6.09 6.10 6.11 6.12 6.13 6.14 6.15 6.16 6.17 6.18 6.19 6.20 6.21 6.22 6.23 6.24 6.25 6.26 6.27 6.28 Lua error in package.lua at line 80: module 'strict' not found. The official Russian list of Soviet tests.
  7. ↑ 7.00 7.01 7.02 7.03 7.04 7.05 7.06 7.07 7.08 7.09 7.10 7.11 7.12 7.13 7.14 7.15 7.16 7.17 7.18 Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ 8.00 8.01 8.02 8.03 8.04 8.05 8.06 8.07 8.08 8.09 8.10 8.11 8.12 8.13 8.14 Lua error in package.lua at line 80: module 'strict' not found.
  9. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  10. ↑ 10.0 10.1 10.2 Lua error in package.lua at line 80: module 'strict' not found.
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