I was just spitballing. Plus, I don't discount for a second that there are bad actors in Israeli intelligence capable of this type of black op. Not impugning Israel at all, just that all major intelligence services seem to have rogue elements.
Thinking more I would also expand on my theory. It 100% looks like a fireworks fire at first (and closer video you can hear them going off..very distinct fireworks fire)..then BOOM...that fire hit something.
I bet there was a fireworks plant/storage/shipping area, I bet the fire started there, then expanded and hit and accidentally/purposefully ? exposed (in a major explosion) an illegal military arms smuggling operation that was being done via fireworks shipments and housed in the same location
Reports in international Agriculture sources saying the huge grain silos next to the explosion were the strategic grain storage for the entire country of Lebanon and the entire countries strategic food supply was destroyed.
Calls upon agriculture producers to respond to help rebuild food supply quickly