That's about when people realized that this wasn't some kind of show, an optical illusion or something to stand around and point at. They might not have understood what they were seeing, but whatever instinct humans possessed that triggered that flight response kicked in.
It became all about survival- about getting away from the big, bad unknown- while trying to snap pictures of the spectacle at the same time.
Got to love the near-innate human response to capture everything on film.

Author: Jennifer L. Armentrout