1977 Soviet nuclear tests
{{short description|none}}
{{See also|List of nuclear weapons tests of the Soviet Union}}
{{Infobox nuclear weapons test
|name = 1977
|picture = Nuclear Blast Animation Rising Mushroom Cloud.gif
|picture_description = Nuclear blast animation
|country = Soviet Union
|test_site = Atyrau, Kazakhstan; Balapan, Semipalatinsk, Kazakhstan; Degelen, Semipalatinsk, Kazakhstan; Irkutsk, Russia; Krasnoyarsk, Russia; NZ Area B, Matochkin Shar, Novaya Zemlya, Russia; Sary-Uzen/Murzhik, Semipalatinsk, Kazakhstan; Zabaykalsky (then Chita), Russia
|period = 1977
|number_of_tests = 24
|test_type = underground shaft, tunnel
|max_yield = {{convert|120|ktTNT|lk=in}}
|previous_series = 1976 Soviet nuclear tests
|next_series = 1978 Soviet nuclear tests
}}
{{GeoGroup|article=1977 Soviet nuclear tests}}
The Soviet Union's 1977 nuclear test series was a group of 24 nuclear tests conducted in 1977. These tests 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". {{cite journal|first=V. N. |last=Mikhailov|title=Catalog of World Wide Nuclear Testing|publisher=Begell-Atom, LLC|url=http://www.iss-atom.ru/ksenia/catal_nt/1.htm|access-date=2013-12-17|archive-url=https://web.archive.org/web/20140426102201/http://www.iss-atom.ru/ksenia/catal_nt/1.htm|archive-date=2014-04-26|url-status=dead}} followed the 1976 Soviet nuclear tests series and preceded the 1978 Soviet nuclear tests series.
| underground shaft,
weapons development
|
| style="text-align:center;" | {{sort|000240000|24 kt}}
|
| Supposed to be in the Sary-Uzen test area, simultaneous with 457 in Degelen.
|-
! 457 - 1{{anchor|457}}
| {{dts|format=dmy|1977|3|29}} 03:56:59.95
| style="text-align:center;" | ALMT (6 hrs)
|| Degelen, Semipalatinsk, Kazakhstan: 707 {{coord|49.7704|78.0136|name=457 - 1|display=inline}}
| {{sort|000735|}}{{convert|735|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000250000|25 kt}}
|
|
|-
! 457 - 2{{anchor|457}}
| {{dts|format=dmy|1977|3|29}} 03:57:00.0
| style="text-align:center;" | ALMT (6 hrs)
|| Degelen, Semipalatinsk, Kazakhstan: 707 {{coord|49.7704|78.0136|name=457 - 2|display=inline}}
| {{sort|000735|}}{{convert|735|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000000000|unknown yield}}
|
|
|-
! 457 - 3{{anchor|457}}
| {{dts|format=dmy|1977|3|29}} 03:57:00.0
| style="text-align:center;" | ALMT (6 hrs)
|| Degelen, Semipalatinsk, Kazakhstan: 707 {{coord|49.7704|78.0136|name=457 - 3|display=inline}}
| {{sort|000735|}}{{convert|735|m|abbr=on}} +
| tunnel,
safety experiment
|
| style="text-align:center;" | {{sort|000000010|1000 kg}}
|
| Simultaneous with 458.
|-
! 459{{anchor|459}}
| {{dts|format=dmy|1977|4|25}} 04:07:00.16
| style="text-align:center;" | ALMT (6 hrs)
|| Degelen, Semipalatinsk, Kazakhstan: 604p {{coord|49.8076|78.1144|name=459|display=inline}}
| {{sort|000770|}}{{convert|770|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000100000|10 kt}}
|
|
|-
! 460{{anchor|460}}
| {{dts|format=dmy|1977|5|29}} 02:57:00.13
| style="text-align:center;" | ALMT (6 hrs)
|| Balapan, Semipalatinsk, Kazakhstan: 1400 {{coord|49.94639|78.77167|name=460|display=inline}}
| {{sort|000330|}}{{convert|330|m|abbr=on}} +
| underground shaft,
weapons development
|
| style="text-align:center;" | {{sort|000440000|44 kt}}
|
|
|-
! 461{{anchor|461}}
| {{dts|format=dmy|1977|6|29}} 03:07:00.24
| style="text-align:center;" | ALMT (6 hrs)
|| Balapan, Semipalatinsk, Kazakhstan: 1080 {{coord|50.00211|78.86589|name=461|display=inline}}
| {{sort|000330|}}{{convert|330|m|abbr=on}} +
| underground shaft,
weapons development
|
| style="text-align:center;" | {{sort|000090000|9 kt}}
|
|
|-
! 462 Meteorit 2 (Meteorite){{anchor|462 Meteorit 2 (Meteorite)}}
| {{dts|format=dmy|1977|7|26}} 17:00:00.2
| style="text-align:center;" | KRAT (7 hrs)
|| Krasnoyarsk, Russia: M2 {{coord|69.575|90.375|name=462 Meteorit 2 (Meteorite)|display=inline}}
| {{sort|000000|}} – {{convert|880|m|abbr=on}}
| underground shaft,
seismic sounding
|
| style="text-align:center;" | {{sort|000150000|15 kt}}
|
| Seismic probing program.
|-
! 463 - 1{{anchor|463}}
| {{dts|format=dmy|1977|7|30}} 01:57:00.11
| style="text-align:center;" | ALMT (6 hrs)
|| Degelen, Semipalatinsk, Kazakhstan: 175 {{coord|49.75|78.0399|name=463 - 1|display=inline}}
| {{sort|000682|}}{{convert|682|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000110000|11 kt}}
|
|
|-
! 463 - 2{{anchor|463}}
| {{dts|format=dmy|1977|7|30}} 01:57:00.1
| style="text-align:center;" | ALMT (6 hrs)
|| Degelen, Semipalatinsk, Kazakhstan: 175 {{coord|49.75|78.0399|name=463 - 2|display=inline}}
| {{sort|000682|}}{{convert|682|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000000000|unknown yield}}
|
|
|-
! 464 Meteorit 5 (Meteorite){{anchor|464 Meteorit 5 (Meteorite)}}
| {{dts|format=dmy|1977|8|10}} 22:00:00.1
| style="text-align:center;" | YAKT (9 hrs)
|| Zabaykalsky (then Chita), Russia: M5 {{coord|50.955|110.983|name=464 Meteorit 5 (Meteorite)|display=inline}}
| {{sort|000195|}}{{convert|685|m|abbr=on}} – {{convert|490|m|abbr=on}}
| underground shaft,
seismic sounding
|
| style="text-align:center;" | {{sort|000085000|8.5 kt}}
|
| Seismic probing program.
|-
! 465{{anchor|465}}
| {{dts|format=dmy|1977|8|17}} 04:26:59.97
| style="text-align:center;" | ALMT (6 hrs)
|| Degelen, Semipalatinsk, Kazakhstan: 111 {{coord|49.82615|78.12007|name=465|display=inline}}
| {{sort|000640|}}{{convert|640|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000080000|8 kt}}
|
|
|-
! 466 Meteorit 3 (Meteorite){{anchor|466 Meteorit 3 (Meteorite)}}
| {{dts|format=dmy|1977|8|20}} 22:00:00.8
| style="text-align:center;" | KRAT (7 hrs)
|| Krasnoyarsk, Russia: M3 {{coord|64.108|99.558|name=466 Meteorit 3 (Meteorite)|display=inline}}
| {{sort|000000|}} – {{convert|600|m|abbr=on}}
| underground shaft,
seismic sounding
|
| style="text-align:center;" | {{sort|000085000|8.5 kt}}
|
| Seismic probing program.
|-
! 467 - 1{{anchor|467}}
| {{dts|format=dmy|1977|9|1}} 02:59:57.97
| style="text-align:center;" | MSK (3 hrs)
|| NZ Area B, Matochkin Shar, Novaya Zemlya, Russia: A-17 {{coord|73.339|54.619|name=467 - 1|display=inline}}
| {{sort|000000|}}{{convert|100|m|abbr=on}} – {{convert|600|m|abbr=on}}
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|001200000|120 kt}}
|
|
|-
! 467 - 2{{anchor|467}}
| {{dts|format=dmy|1977|9|1}} 02:59:58.0
| style="text-align:center;" | MSK (3 hrs)
|| NZ Area B, Matochkin Shar, Novaya Zemlya, Russia: A-17 {{coord|73.339|54.619|name=467 - 2|display=inline}}
| {{sort|000100|}}{{convert|100|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000000000|unknown yield}}
|
|
|-
! 467 - 3{{anchor|467}}
| {{dts|format=dmy|1977|9|1}} 02:59:58.0
| style="text-align:center;" | MSK (3 hrs)
|| NZ Area B, Matochkin Shar, Novaya Zemlya, Russia: A-17 {{coord|73.339|54.619|name=467 - 3|display=inline}}
| {{sort|000100|}}{{convert|100|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000000000|unknown yield}}
|
|
|-
! 467 - 4{{anchor|467}}
| {{dts|format=dmy|1977|9|1}} 02:59:58.0
| style="text-align:center;" | MSK (3 hrs)
|| NZ Area B, Matochkin Shar, Novaya Zemlya, Russia: A-17 {{coord|73.339|54.619|name=467 - 4|display=inline}}
| {{sort|000100|}}{{convert|100|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000000000|unknown yield}}
|
|
|-
! 468 - 1{{anchor|468}}
| {{dts|format=dmy|1977|9|5}} 03:02:59.96
| style="text-align:center;" | ALMT (6 hrs)
|| Balapan, Semipalatinsk, Kazakhstan: 1079 {{coord|50.05666|78.93845|name=468 - 1|display=inline}}
| {{sort|000330|}}{{convert|330|m|abbr=on}} +
| underground shaft,
weapons development
|
| style="text-align:center;" | {{sort|000780000|78 kt}}
|
|
|-
! 468 - 2{{anchor|468}}
| {{dts|format=dmy|1977|9|5}} 03:03:00.0
| style="text-align:center;" | ALMT (6 hrs)
|| Balapan, Semipalatinsk, Kazakhstan: 1079 {{coord|50.05666|78.93845|name=468 - 2|display=inline}}
| {{sort|000330|}}{{convert|330|m|abbr=on}} +
| underground shaft,
fundamental science
|
| style="text-align:center;" | {{sort|000000000|unknown yield}}
|
|
|-
! 469 Meteorit 4 (Meteorite){{anchor|469 Meteorit 4 (Meteorite)}}
| {{dts|format=dmy|1977|9|10}} 16:00:00.2
| style="text-align:center;" | IRKT (8 hrs)
|| Irkutsk, Russia: M4 {{coord|57.251|106.551|name=469 Meteorit 4 (Meteorite)|display=inline}}
| {{sort|000000|}} – {{convert|540|m|abbr=on}}
| underground shaft,
industrial
|
| style="text-align:center;" | {{sort|000076000|7.6 kt}}
|
| Seismic probing program. 120 km NE Uzst-Kut.
|-
! 470 Galit A5 (Halite){{anchor|470 Galit A5 (Halite)}}
| {{dts|format=dmy|1977|9|30}} 06:59:58.4
| style="text-align:center;" | SHET (5 hrs)
|| Atyrau, Kazakhstan: A-V {{coord|47.89717|48.16124|name=470 Galit A5 (Halite)|display=inline}}
| {{sort|000000|}} – {{convert|1500|m|abbr=on}}
| underground shaft,
industrial
|
| style="text-align:center;" | {{sort|000100000|10 kt}}
|
| Create reservoirs for gas storage. Location looks like a subsidence crater.
|-
! 471{{anchor|471}}
| {{dts|format=dmy|1977|10|9}} 10:59:58.12
| style="text-align:center;" | MSK (3 hrs)
|| NZ Area B, Matochkin Shar, Novaya Zemlya, Russia: A-7P {{coord|73.409|54.927|name=471|display=inline}}
| {{sort|000000|}}{{convert|100|m|abbr=on}} – {{convert|160|m|abbr=on}}
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000050000|5 kt}}
| Venting detected off site, {{convert|3|kCi|TBq|abbr=on}}
|
|-
! 472 Galit A2.2 (Halite){{anchor|472 Galit A2.2 (Halite)}}
| {{dts|format=dmy|1977|10|14}} 06:59:59.1
| style="text-align:center;" | SHET (5 hrs)
|| Atyrau, Kazakhstan: A-II-3 {{coord|47.909|47.912|name=472 Galit A2.2 (Halite)|display=inline}}
| {{sort|000000|}} – {{convert|600|m|abbr=on}}
| underground shaft,
industrial
|
| style="text-align:center;" | {{sort|000001000|100 t}}
|
| Create reservoirs for gas storage. This shot was a fizzle.
|-
! 473 - 1{{anchor|473}}
| {{dts|format=dmy|1977|10|29}} 03:06:59.97
| style="text-align:center;" | ALMT (6 hrs)
|| Degelen, Semipalatinsk, Kazakhstan: 136 {{coord|49.8265|78.0801|name=473 - 1|display=inline}}
| {{sort|000638|}}{{convert|638|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000420000|42 kt}}
|
|
|-
! 473 - 2{{anchor|473}}
| {{dts|format=dmy|1977|10|29}} 03:07:00.0
| style="text-align:center;" | ALMT (6 hrs)
|| Degelen, Semipalatinsk, Kazakhstan: 136 {{coord|49.8265|78.0801|name=473 - 2|display=inline}}
| {{sort|000638|}}{{convert|638|m|abbr=on}} +
| tunnel,
fundamental science
|
| style="text-align:center;" | {{sort|000000000|unknown yield}}
|
|
|-
! 474{{anchor|474}}
| {{dts|format=dmy|1977|10|29}} 03:07:04.92
| style="text-align:center;" | ALMT (6 hrs)
|| Balapan, Semipalatinsk, Kazakhstan: 1214 {{coord|50.04851|78.98633|name=474|display=inline}}
| {{sort|000330|}}{{convert|330|m|abbr=on}} +
| underground shaft,
weapons development
|
| style="text-align:center;" | {{sort|000500000|50 kt}}
|
|
|-
! 475 Galit A2.3 (Halite){{anchor|475 Galit A2.3 (Halite)}}
| {{dts|format=dmy|1977|10|30}} 06:59:59.1
| style="text-align:center;" | SHET (5 hrs)
|| Atyrau, Kazakhstan: A-II-4 {{coord|47.909|47.912|name=475 Galit A2.3 (Halite)|display=inline}}
| {{sort|000000|}} – {{convert|600|m|abbr=on}}
| underground shaft,
industrial
|
| style="text-align:center;" | {{sort|000001000|100 t}}
|
| Create reservoirs for gas storage. A fizzle.
|-
! 476{{anchor|476}}
| {{dts|format=dmy|1977|11|12}} 05:11:00.0
| style="text-align:center;" | ALMT (6 hrs)
|| Balapan, Semipalatinsk, Kazakhstan: 1073 {{coord|50.05222|78.86444|name=476|display=inline}}
| {{sort|000330|}}{{convert|330|m|abbr=on}} +
| underground shaft,
weapons development
|
| style="text-align:center;" | {{sort|000000000|unknown yield}}
|
|
|-
! 477{{anchor|477}}
| {{dts|format=dmy|1977|11|27}} 03:57:00.0
| style="text-align:center;" | ALMT (6 hrs)
|| Degelen, Semipalatinsk, Kazakhstan: 18p {{coord|49.75725|78.05279|name=477|display=inline}}
| {{sort|000537|}}{{convert|537|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000000000|unknown yield}}
|
|
|-
! 478 - 1{{anchor|478}}
| {{dts|format=dmy|1977|11|30}} 04:06:59.94
| style="text-align:center;" | ALMT (6 hrs)
|| Balapan, Semipalatinsk, Kazakhstan: Glubokaya {{coord|49.96722|78.87444|name=478 - 1|display=inline}}
| {{sort|000330|}}{{convert|330|m|abbr=on}} +
| underground shaft,
weapons development
|
| style="text-align:center;" | {{sort|000700000|70 kt}}
|
|
|-
! 478 - 2{{anchor|478}}
| {{dts|format=dmy|1977|11|30}} 04:06:59.9
| style="text-align:center;" | ALMT (6 hrs)
|| Balapan, Semipalatinsk, Kazakhstan: Glubokaya {{coord|49.96722|78.87444|name=478 - 2|display=inline}}
| {{sort|000330|}}{{convert|330|m|abbr=on}} +
| underground shaft,
weapons development
|
| style="text-align:center;" | {{sort|000000000|unknown yield}}
|
|
|-
! 479{{anchor|479}}
| {{dts|format=dmy|1977|12|26}} 04:03:??
| style="text-align:center;" | ALMT (6 hrs)
|| Degelen, Semipalatinsk, Kazakhstan: 803 {{coord|49.81683|78.05366|name=479|display=inline}}
| {{sort|000722|}}{{convert|722|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000000000|unknown yield}}
|
|
|-
! 480 - 1{{anchor|480}}
| {{dts|format=dmy|1977|12|26}} 04:03:00.24
| style="text-align:center;" | ALMT (6 hrs)
|| Degelen, Semipalatinsk, Kazakhstan: 123p {{coord|49.80554|78.11539|name=480 - 1|display=inline}}
| {{sort|000752|}}{{convert|752|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000060000|6 kt}}
|
|
|-
! 480 - 2{{anchor|480}}
| {{dts|format=dmy|1977|12|26}} 04:03:00
| style="text-align:center;" | ALMT (6 hrs)
|| Degelen, Semipalatinsk, Kazakhstan: 122p {{coord|49.80621|78.11687|name=480 - 2|display=inline}}
| {{sort|000711|}}{{convert|711|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000000010|1000 kg}}
|
|
|-
! 480 - 3{{anchor|480}}
| {{dts|format=dmy|1977|12|26}} 04:03:00
| style="text-align:center;" | ALMT (6 hrs)
|| Degelen, Semipalatinsk, Kazakhstan: 122p {{coord|49.80621|78.11687|name=480 - 3|display=inline}}
| {{sort|000711|}}{{convert|711|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000000000|unknown yield}}
|
|
|-
! 480 - 4{{anchor|480}}
| {{dts|format=dmy|1977|12|26}} 04:03:00
| style="text-align:center;" | ALMT (6 hrs)
|| Degelen, Semipalatinsk, Kazakhstan: 122p {{coord|49.80621|78.11687|name=480 - 4|display=inline}}
| {{sort|000711|}}{{convert|711|m|abbr=on}} +
| tunnel,
weapons development
|
| style="text-align:center;" | {{sort|000000000|unknown yield}}
|
|
|}
{{reflist|group=note}}