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Operation Quicksilver (1978) facts for kids

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See also: List of nuclear weapons tests of the United States
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Quicksilver
Information
Country United States
Period 1978–1979
Number of tests 16
Test type underground shaft
Max. yield 140 kilotonnes of TNT (590 TJ)

Operation Quicksilver was a series of 16 nuclear tests conducted by the United States in 1978–1979 at the Nevada Test Site. These tests followed the Operation Cresset series and preceded the Operation Tinderbox series.

United States' Quicksilver series tests and detonations
Name Date time (UT) Local time zone Location Elevation + height Delivery
Purpose		 Device Yield Fallout References Notes
Emmenthal November 2, 1978 15:25:00.169 PST (–8 hrs)
 NTS Area U19t 37°17′16″N 116°17′54″W / 37.28789°N 116.29838°W / 37.28789; -116.29838 (Emmenthal) 2,104 m (6,903 ft) – 576.1 m (1,890 ft) underground shaft,
weapons development		 2.5 kt
Concentration December 1, 1978 17:07:30.073 PST (–8 hrs)
 NTS Area U3kn 37°01′47″N 116°01′30″W / 37.02965°N 116.02488°W / 37.02965; -116.02488 (Concentration) 1,189 m (3,901 ft) – 247.59 m (812.3 ft) underground shaft,
weapons development		 600 t
Farm December 16, 1978 15:30:00.158 PST (–8 hrs)
 NTS Area U20ab 37°16′24″N 116°24′40″W / 37.27334°N 116.41116°W / 37.27334; -116.41116 (Farm) 1,979 m (6,493 ft) – 689 m (2,260 ft) underground shaft,
weapons development		 140 kt Venting detected
Baccarat January 24, 1979 18:00:00.1 PST (–8 hrs)
 NTS Area U7ax 37°06′19″N 116°00′45″W / 37.10536°N 116.01253°W / 37.10536; -116.01253 (Baccarat) 1,311 m (4,301 ft) – 326.44 m (1,071.0 ft) underground shaft,
weapons development		 6 kt
Quinella February 8, 1979 20:00:00.089 PST (–8 hrs)
 NTS Area U4l 37°06′09″N 116°03′21″W / 37.10243°N 116.05571°W / 37.10243; -116.05571 (Quinella) 1,241 m (4,072 ft) – 579.1 m (1,900 ft) underground shaft,
weapons development		 89 kt
Kloster February 15, 1979 18:05:00.165 PST (–8 hrs)
 NTS Area U2eo 37°09′07″N 116°04′22″W / 37.15196°N 116.07271°W / 37.15196; -116.07271 (Kloster) 1,297 m (4,255 ft) – 536.4 m (1,760 ft) underground shaft,
weapons development		 20 kt Venting detected
Memory March 14, 1979 18:30:00.095 PST (–8 hrs)
 NTS Area U3kg 37°01′40″N 116°02′26″W / 37.02778°N 116.04062°W / 37.02778; -116.04062 (Memory) 1,190 m (3,900 ft) – 364.85 m (1,197.0 ft) underground shaft,
weapons development		 5 kt
Freezeout May 11, 1979 16:00:00.102 PST (–8 hrs)
 NTS Area U3kw 36°59′53″N 116°01′06″W / 36.99818°N 116.01844°W / 36.99818; -116.01844 (Freezeout) 1,177 m (3,862 ft) – 335.3 m (1,100 ft) underground shaft,
weapons development		 5 kt
Pepato June 11, 1979 14:00:00.17 PST (–8 hrs)
 NTS Area U20ad 37°17′23″N 116°27′22″W / 37.28963°N 116.45614°W / 37.28963; -116.45614 (Pepato) 1,913 m (6,276 ft) – 681 m (2,234 ft) underground shaft,
weapons development		 100 kt I-131 venting detected, 0
Chess June 20, 1979 15:00:13.542 PST (–8 hrs)
 NTS Area U7at 37°06′27″N 116°00′57″W / 37.10761°N 116.01585°W / 37.10761; -116.01585 (Chess) 1,309 m (4,295 ft) – 335.3 m (1,100 ft) underground shaft,
weapons development		 1.5 kt
Fajy June 28, 1979 14:44:00.167 PST (–8 hrs)
 NTS Area U2fc 37°08′35″N 116°05′18″W / 37.14305°N 116.08847°W / 37.14305; -116.08847 (Fajy) 1,303 m (4,275 ft) – 536 m (1,759 ft) underground shaft,
weapons development		 22 kt I-131 venting detected, 0
Burzet August 3, 1979 15:07:30.164 PST (–8 hrs)
 NTS Area U4ai 37°05′02″N 116°04′15″W / 37.0839°N 116.07076°W / 37.0839; -116.07076 (Burzet) 1,235 m (4,052 ft) – 450 m (1,480 ft) underground shaft,
weapons development		 20 kt Venting detected
Offshore August 8, 1979 15:00:00.112 PST (–8 hrs)
 NTS Area U3ks 37°00′53″N 116°00′32″W / 37.0147°N 116.00887°W / 37.0147; -116.00887 (Offshore) 1,182 m (3,878 ft) – 396.54 m (1,301.0 ft) underground shaft,
weapons development		 20 kt
Hearts September 6, 1979 15:00:00.089 PST (–8 hrs)
 NTS Area U4n 37°05′17″N 116°03′13″W / 37.08806°N 116.05356°W / 37.08806; -116.05356 (Hearts) 1,232 m (4,042 ft) – 640.02 m (2,099.8 ft) underground shaft,
weapons development		 140 kt Destroyed Cresset/Transom device which didn't detonate.
Pera September 8, 1979 17:02:00.09 PST (–8 hrs)
 NTS Area U10bd 37°09′18″N 116°02′21″W / 37.15495°N 116.03906°W / 37.15495; -116.03906 (Pera) 1,280 m (4,200 ft) – 200 m (660 ft) underground shaft,
weapons development		 5 kt
Sheepshead September 26, 1979 15:00:00.091 PST (–8 hrs)
 NTS Area U19aa 37°13′46″N 116°21′53″W / 37.22935°N 116.36482°W / 37.22935; -116.36482 (Sheepshead) 2,033 m (6,670 ft) – 640 m (2,100 ft) underground shaft,
weapons development		 140 kt
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