It, supposedly, was located next to a fireworks factory.
The video is pretty crazy to watch.
You see the pressure wave, then a couple seconds later hear the boom.
Ok..... first I’ve heard of the fireworks.
My first thought was that there was a grain dust detonation
Yes, videos do appear to show a fireworks factory on fire with the expected flashes, and then the very much larger KABOOM. Would detonations experts on FR have an opinion about whether a hit from a fireworks rocket would be enough to detonate the ammonium nitrate?