Food Truck Explosion in Philly- propane!

maillemaker wrote:
From the video, you can tell the tank itself suffered a catastrophic failure prior to the ignition, as there is a giant cloud of propane that blows out from the truck, which then ignites and burns off pretty quickly.

Good eye. Had it been a true tank explosion (aka BLEVE) the fireball would have been much bigger. A 20 lb. tank BLEVE can create a fireball the size of a house, and according to the video those were 100 lb. tanks.