Uragashira, who now lives on a remote island off Nagasaki, is one of the few remaining "niju hibakusha" -- survivors of not one but both atom bomb attacks on Japan in the final days of World War II.
"I was lucky as a lot of others died instantly, but I still want to know why such a horrible thing happened to me twice," she said quietly.
An estimated 140,000 people died instantly in Hiroshima or succumbed to burns and radiation sickness soon after the blast, and over 70,000 perished as a result of the Nagasaki attack three days later.
Friday marks the 65th anniversary of the Hiroshima bombing.
Around 150 people, like Uragashira, are thought to have been exposed to both bombings.
The only person officially recognized as a survivor of both bombs, Tsutomu Yamaguchi, who died in January aged 93, once told an interviewer: "I thought the mushroom cloud had followed me."
Media interest has grown in the double-survivors. Last month, a publisher released the Japanese translation of interviews a New York Times correspondent held with nine of them in the 1950s.