Hello how may I help you? can you help me with some information? Sure what do you need to know? What was the loudest recorded sound? The loudest sound was the Krakow volcano in 1852 Wow. How was that recorded way back then? There was a simple machine that could detect decibel wow, that's cool. Thanks for the info you are welcome. any more questions? I think that's all. Thank you! No problem!