[CivilWarBrewing]

Another smaller fire set off a huge propane tank next to large building which is now utterly destroyed.. NOT terrorism. Not stating as fact, but this is my guess.

[Diogenesis]

it looks like 3 explosions.

the first is grey and white,
leading to the second with red (strontium? nitric acid?),
followed by the third which was something else.

[Fraxinus]

Another smaller fire set off a huge propane tank next to large building which is now utterly destroyed.. NOT terrorism. Not stating as fact, but this is my guess.

I seriously doubt that is propane, but my question is how much nitrates were stored on site. Not an expert, but my guess is multiple tons. BTW Fireworks and munitions would both use various nitrates in their construction. E.G. Potassium Nitrate; Sodium Nitrate (unlikely); Ammonium Nitrate.