Ive heard a lot of speculation that these fires were set deliberately using Directed Energy Weapons (Tesla's "death Ray" technology). This is not only plausible, but it represents a huge leap forward in the unfolding of Biblical prophecy, because that would be a nearly literal fulfillment of Revelation 13:7, where the Antichrist "doeth great wonders, so that he maketh fire come down from heaven on the earth in the sight of men, and deceiveth them that dwell on the earth by the means of those miracles which he had power to do in the sight of the beast." I can point to almost every verse in Revelation 13 and identify a near literal fulfillment of it taking place in the world today.