Region
United States
1,149
Japan
69
Pennsylvania
61
Great Britain
47
Mexico, Gulf of
41
England
36
Harrisburg Region
36
Ukraine
34
New York (State)
29
California
26
Spain
21
Texas
21
Fukushima-ken
20
Alaska
18
West Virginia
18
India
16
Washington (D.C.)
16
New York
15
Massachusetts
13
Soviet Union
13
Tennessee
13
Australia
12
Canada
12
France
12
Russia (Federation)
12
Chornobylʹ
11
Europe
11
Illinois
10
North Carolina
10
Washington (State)
10
Germany
9
Ohio
9
Virginia
9
Bangladesh
8
Bhopal
8
Gulf States
8
Idaho
8
London (England)
8
New Jersey
8
Colombia
7
Florida
7
Utah
7
Belarus
6
Chicago
6
Colorado
6
Everest, Mount (China and Nepal)
6
Italy
6
Philadelphia
6
Washington Metropolitan Area
6
Alabama
5
more ...