posted on May, 20 2013 @ 02:00 PM
reply to post by Char-Lee
You know, you hit on something there that really bugs me too. These aren't large, fast sinking depressions with obvious source. Like, say, an
underground lake collapsing or a natural cavern structure giving way.
These are friggin HOLES. As you note, with clear and solid sides....and bottom. Obviously the TOP was solid enough until quite recently, in fact.
So...outside of the obvious water main breaks or other blatantly man-made disaster type hole being created .....Where does what used to be IN the
hole, go precisely? The answer to that would seem to be what predates the hole itself...hence, what to look for in predicting future ones.
I just can't seem to find an answer to that, now that you mention it. That bothers me....especially with the sheer size, not to mention location of
some of these. When warehouse floors in a mature part of the nation for development start swallowing forklift operators, I think it's time to focus
on this as a question really really in need of an answer. (nervously glances at ground....previously taken for granted as solid)