That is why our home on wheels has a propane detector, a CO detector, and two fire alarms. It is only a year old, but in a few years we will replace all of the flexible lines. If we smell propane, we find out where it is coming from NOW!!!

A BLEVE would "probably" be even worse than this. Most BLEVE's are caused when an entire tank of propane (or other flamable gas), without a functuning "pop" valve, gets heated, usually by fire, to the point that the gas explodes. This was "probably" a case of a leak inside of the structure that met an ignition source. So it might not have been the entire contents of the tank, and the structure "gave" easier than the tank would. Less confinement, less "boom." But still one hell of a boom...