Why are sinkholes round?

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It seems every picture of a sinkhole shows a perfectly round home in the ground. I understand how sinkholes form, but why wouldn’t they also form in oblong or more abstract shapes?

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6 Answers

Anonymous 0 Comments

Because if it was any other shape than the round, there is a chance it can fall down the sinkhole.

Suppose there is a square sinkhole. The diagonals are longer than the sides, if the lid was removed and placed incorrectly, the square sides might fall in the diagonal space down the hole.

This doesn’t happen for round sinkholes since all the sides are of equal length.

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