Four people were killed and five others were seriously injured when propane vapors from a storage tank ignited and exploded at the Little General convenience store and gas station in Ghent, West Virginia. Propane was used as fuel inside the building, which was completley destroyed. Identify the hazard(s) and the properties that make the hazard(s) dangerous. There may be more than one hazard present in this story; be sure to list the most important hazard first.

Identify the factors or conditions necessary for the hazard(s) to transition to the mishap. These were referred to as Initiating Mechanisms (IMs) in the text.

Identify as many Targets that are the result of this mishap. was completely destroyed.