Hello how may I help you? i have a question to ask I am pretty good at answering questions. what is the loudest sound recorded? hello? I can't find info on the loudest sound recorded. sure? I have found the loudest sound, but not a sound that has been recorded such as to a tape or hard drive. okay hello? the krakatao volcanic eruption ruptured peoples eardrums that were 40 miles away from it. thanks thanks Your welcome!