Yeah it went on about 12 hours which might be a record. But this was the 38th eruption this year. Others may not have been as big as this though.

That said, it feels like a once in a lifetime experience, yes. See my video: https://www.instagram.com/s/aGlnaGxpZ2h0OjE4NDM1Nzg1OTAyMTA0...