Nitpicking here maybe but this does not look like a 3 kiloton blast to me. Neither the size of the core explosion or the apparent shock wave damage correspond to that magnitude from a surface blast. Guessing here but I'd say closer to 2 kilotons at most.
Amazingly, the massive, hollow grain silo right next to the detonation itself remained standing afterwards.
Amazingly, the massive, hollow grain silo right next to the detonation itself remained standing afterwards.