In the early 1950s, several above-ground atom bomb tests at the Nevada Proving Ground were visible in Los Angeles. Here, the March 1, 1955 blast lights up the pre-dawn sky behind the Los Angeles City Hall.See all six photos: 1, 2, 3, 4, 5, 6.
This photo and five similar ones from 1951-1955 are from the Los Angeles Public Library Photo Database. Search for "bomb nevada" to bring up all six thumbnail photos with descriptions.
No photographer name is credited with this [or other] photo[s], but the library database description reads:An A-bomb blast set off in Nevada at 4:36 a.m., on April 18, 1953, was judged by early risers to have been the most sensational of any seen so far. The blast made the eastern horizon as "bright as day."
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