First time changing a blowout diaper - I wasn't prepared

Yesterday my 5 week old daughter had what I can only describe as a diaper disaster. It was EVERYWHERE. Up her back, down her legs, on my shirt. I literally just stood there for like 30 seconds wondering how something so small could produce that much. My wife was laughing at me the whole time. I've changed like 200 diapers but that was a different beast entirely. Is this normal or did she eat something weird? She seems fine now.