CBC报导如下：

（调查者发现，虽然是剧烈广泛的爆炸， 却没有留下多少火灾的痕迹。 这表明： 爆炸的起因可能是a "volatile, ignitable" fuel“。 到底这a "volatile, ignitable" fuel是啥？未知。 ）Yesterday investigators said despite the massive explosion, there was little fire damage, which indicates the explosion was caused by a "volatile, ignitable" fuel.

（官方也称这次爆炸为STOICHIOMETRIC CONBUSION案， 因为在这个爆炸里，易燃物品被彻底完全地燃尽了。）Officials called the explosion a case of "stoichiometric combustion," which means an explosion where the combustible fuel is burned completely.

（调查者在寻找移动气体，可能这种移动气体从土壤渗出，流入地下室，然后引起爆炸。） "We're looking for migrant gases — is it possible that we have migrant gases that have come through the soil and into the basement," said Wayne Romaine of the Ontario Fire Marshal's office.