Excellent! :-D I think this probably gets across the idea to anyone that was of mid-teens age in 1977 very well.
The enormity of this calamity is really beyond immediate human understanding - we can work out the kinetics, we can review films of Hiroshima, Mt. St. Helens, the telescopic pics of Jupiter when the comet fragments hit etc. etc., but those are abstracts.
That's what I mean.
This thing fractured quartz crystals on the other side of the world -