Hello how may I help you? I need the world record for the loudest sound recorded. Sure, let me find that for you Okay. The loudest sound ever recorded was the krakatoa volcanic erruption in 1883 What method did they use to measure the loudness? great question. They were able to record that with some ancient recording methods that measured the decibles Thanks bot. You are a wealth of information. It ruptured eardrums of people 40 miles away! Wow! Is there anything else I can help you with today? Nope.