Table 2
Number of reported uncereround and cratering events in the
United States (April 1963 - December 1968),
a,
Total number of events
Non-vented underground ~ 156% —
-
he
1
= #4,
Vented undersround------
Cratering events-------db.
tr/&
ee
3
Number of events during periods coz non-atmospheric testing
Non-vented
Vented
Undereround
Aor, 1963 - Oct. 16, 1964
Nov. 2, 1964 - May 14, 1965
June 22, 1965 - May 9, 1965
July i9, 1966 - Sent, 11, 1966
Nov, 16, 1956 - Dac, 27, 1966
_ Jan, 16, 1967 - June 5, 1967
Juiy 2, 1967 - Dec, 24, 1967
Jan, 4, 1968 - July 7, 1958
Sept, 8, 1968 - Dec, 27, 1968
TOTAL:
¢.
39
13
27
2
3
12.
li
+s 1/4
LO
ts.
{2 {
Undersround
.
Cratering
3
0
3
2
0
0
1
1
AL
0
2
0
0
0
0
0
2
1
tbh
3
AL
—=_
——==_
Number of events during period May through October excluding atmospheric
tests,
Non-vented
May 1 - Oct, 31, 1963
May 1 - Oct, 16, 1964
May 1 - May 14, 1965
June 22 - Oct, 31, 1965
May 1 - May 9, 1966
July 19 - Sept. 11, 1966
Mey 1 - June 5, 1967
July 2 - Oct, 31, 1967
May 1 - July 7, 1968
Sept. 8 - Oct, 31, 19358
TOTAL:
* Includes two joint US-UK events,
Vented
Underexvound
Underground
23
1
14
2
7
3
2
4
8
.
4
0
1
0
0
0
0
1
0
0
él
“3_
|
Cratering
0
0
©
0
0
0
0
0
0
0
“O-
.