closer than 100 feet to this event is an instant headache. closer than 10 feet is a lethal concussion. up to 200 feet out from it, you feel the impact in your chest like someone shoved you. and yet it is not a detonation. it's a deflagration. for those who like to pick nits that means the propagated wave is only subsonic, not supersonic. watch again, it only gets better.
