Nagasaki fell to the same treatment as Hiroshima on August 9, 1945. It missed its intended target by over one and a half miles. Nagasaki's population dropped in one split-second from 422,000 to 383,000. 39,000 were killed, over 25,000 were injured. That blast was less than 10 kilotons as well.
Controversy still exists about dropping the two atomic bombs on Japan.