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#8 S
HELFRICH AND RAY
TABLE1
Nuclear Tests at Enewetak Atoll
Operation
event name
Date
Sandstone
X-ray
Yoke
Zebra
Greenhouse
Dog
‘Easy
George
item
Type and
height, ft
4/14/48
4/30/48
5/14/48
Tower 200
Tower 200
Tower 200
4/7/81
Tower 300
Yield
a
37 KT
49 KT
18.KT
_o
Location
mo
Janet, west tip
Sally
Yvonne. north end
¥vonne, north end
4/20/5)
5/8/51
5/24/51
Tower 300
Tower 200
Tower 200
47 KT
10/31/52
Surface
Airdrop 1500
10.4MT
500 KT
Yvonne, 2000’ N
Nectar
5/13/54
Barge
1.69MT
Mike Crater
Redwing
Lacros3e
.
5/4/56
:
Surface
40 KT
Ivy
~
King
11/15/52
Castle
Yurna
5/27/56
Erie
Seminole
Blackfoot
Kickapoo
Osage
Inca
Mohawk
Apache
’
Dogwood
Scaevola
Pisonia
Olive
Pine
Quince
Fig
§002418
Tower 300
Surface
Tower 200
Tower 300
Airdrop 670
7/8/56
Barge
5/5/58
5/11/58
5/12/58
5.16/58
5.20/58
5 26/58
5 26/58
5 30/58
.
Surface
Barge
Surface
Underwater 500
Barge
Barge
Barge
Barge
6 8/58
6.14/58
6.18/58
6 27/58
6 28/58
7/2/58
Underwater 150
Barge
Barge ,
Barge
Barge
Barge
7/21/56
Hardtack, Phase |
Cactus
Butternut
Koa
Wahoo
Holly
Yellowwoud
Magnolia
Tobacco
Umbrella
Walnut
Linden
Elder
Oak
Sequoia
5/30/56
6/6/56
6/11/56
6/13/56
6/16/56
6.21/56
7/2/56
Huron
-
Tower 200
62/58
725/58
13.7KT
Tower 200
Tower 300
Yvonne. north end
Sally, west tip
Yvonne, by airstrip
Irene
Yvonne, middle
Salhy. north tip
Yvonne. middle
Pearl
Ruby
Mike Crater
Barge
Barge
Fiora
Mike Crater
18 KT
137 MT
~
_
8.9 MT
Yvonne, north end
Yvonne. 4000° SW
Gene
dames, 7400'S
Yvonne. 2075’ SW
Janet. 6000' SW
Yvonne, 3000' SW
Jane}.4000' SW.
Yvonne, 4000° SW
Glenn. 7400’ N
Janet. 6000' SW
Yvonne, 2000' SW
Jane:. 4000’ SW
Ace reef. 3 mi SW
Yvonne, 2000' SW
7. 14/58
7.17/58
7-22/58
726/58
Barge
Barge
Barge
Barge
Barge
Janet. 4000° SW
& 0 ‘58
Surface
Yvorne. middle
. & 18/58
Surface
Yvonne. 561’ SW
Yvonne, 12000° W
Jane. 4000" SW
Jane. 8500' SW
Yvorne. middle
®
34
$
=
ws
Mike
Rose
Janet, west tip
Ruby
Janet. north tip