[Vendome]

So you get the concept of Blow and Sink Hole?

Now get this: What about a burp? In other words, that damn suddenly and catastrophically implodes, the water drops into the hole and other water suddenly fills it.

What then? Tidal wave as it suddenly settles out?

What about a continuous that draws water down or that essentially stabilizes but leaves a lower water table that draws the land or shore toward the sinkhole.

See hear for a small scale example:
http://www.youtube.com/watch?v=BPGOtCb4A3M

Here is a sinkhole from 2008 in Texas.
http://www.youtube.com/watch?v=UsF_G5qLasM&feature=related

The thing that worries me most about this is what happens during a catastrophic failure of the dome well.

[mojitojoe]

Tidal wave as it suddenly settles out?
________________
:( Can that happen?

[Dinah Lord]

Those videos are chilling...especially when you think about the fact that the Deepwater Horizon oil deposit is the second largest in the world. I have to assume that its size WOULD have an impact on the size of the potential sinkhole?

What about a continuous (wave?)that draws water down or that essentially stabilizes but leaves a lower water table that draws the land or shore toward the sinkhole...

So, would that result in a kind of reverse tsunami?