Sentence:  <WSD>Blast</WSD> after <WSD>blast</WSD>, fiery outbreak after fiery outbreak, like a flaming barrage from within,...most of Edison's grounds soon became an inferno.  As though on an incendiary rampage, the fires systematically devoured the contents of Edison's headquarters and facilities. 
Meaning of the word marked with <WSD> tags:  An explosion, especially for the purpose of destroying a mass of rock, etc.