[nashashmi]

Some say it is because of equipment failure, ground settlement, wind vibrations, and/or some combination of the three. But no one knows for sure.

[mikequinlan]

I suspect that somebody knows for sure, they just aren't announcing it to the press.

[nashashmi]

I suspect the problem could be multifaceted and they are continuing to explore the situation. And of course stamp out responsibility. Public relations and communication is not a concept in this part of the world. Which is why we won’t be learning anything until the problem is completely gone.