>>3845458
First, the two prongs of smoke are the result of an explosion that pushes hot smoke up high enough in the atmosphere than it gets into a layer where the wind is blowing in a different direction than lower down. Sometimes, in summer when lower clouds are thin enough, you can see that they are moving in a different direction than upper clouds.
So, what I am saying is that the two prongs may be interesting to see but are pretty much irrelevant since we don't know wind and weather currents in this area and at the altitude of the hills.
Far more important are the two facts: a) there was an explosion and b) something in the content projected upwards was heavy and fell back to earth.
I expect that this was a device filled with magnesium chips, and explosives, that blew up, ignited the magnesium chips and spread them out over a wide area. Lets say you have a truck, mount a mortar-like device similar to what is used in shooting up fireworks, fire a magnesium capsule filled with magnesium chips and gunpowder which ignites at a higher altitude just like fireworks, then the chips start fire wherever they land and burn up into ash. The container also burns up into ash so there is no trace like with fireworks and a heavy cardboard tube. And when firefighters look to identify ground zero, to look for tire tracks, matches, footprints in the soil, etc, There is none. No single point where the fire started. If the truck is on asphalt, then they drive away and nobody can trace the fire back to who started it.