I would agree except for the video that shows something resembling a fire on the ground. I also note that people had enough time to take out their cameras and begin shooting video, something not likely if on a couple of seconds long had taken place.
In that instance the big ball of fire could be the first thing they would see, what with cloud cover and all.
At least that is my reasoning.
I typed too fast.
Meteor would have same effect as a nuke.
Minus the fallout though.
Russians keep their dashboard cameras running at all time as a form of self-protection. That’s why the great car-crash footage comes out of Russia. (Plus they’re mostly drunk and insane.)