3

pease

:

ae

as

5

¢

t

oe

Bee ace

we

1946

1954

ay

1948
W951
1952
1956
1958

EMIWETON IS
“US. TESTS
“ho

°
1962

US TESTS
1955

CHRISTMAS Is
C!S 5 TESTS. 1962
UK TESTS 1957. 1958

ear

JGHNSTON 1S
US TESTS

&

FIGURE 1.

NEVADA

TEST SITE? ~.

‘Sa dah

FRENCH *..
TEST SITE

USSR
MOVAYA ZEMLYA
TEST SITE

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