A woman walking her dog Wednesday found a live, World War II-era bomb on a Florida beach, which authorities later detonated. No one was injured. Jeannie Emack called local authorities, who determined the roughly 100-pound (45.4-kilogram) bomb was too old and unstable to move. Instead, they evacuated nearly two blocks of homes, while members of the sheriff's Explosive Ordinance Disposal team dug a hole in the sand and detonated the bomb. The bomb was covered in rust, indicating it was in salt water for about fifty years, officials said.