Hehe, that's happened to me a few times. I think it has something to do with going in there after you've played games(fireworks?). Kind of like the old Pirates bug that made everyone stand on top of each other.
Personally, I think someone on board mistook a plug to fix a leak with a lit stick of dynamite. Nobody was harmed, as they evacuated the ship by inexplicably "blinking" themselves onto land.