No, it is just bad planning, research and construction on China's part. One prominent Chinese scientist warned of all these things with the construction of the dam, that it would cause flooding, earthquakes because of the extra weight in geological fragile areas, land slides and ultimately catastrophic dam collapse. It looks like it might happen prior to his prediction.
Re : “mountains blowing up”
I was quoting bagster’s post #692:
https://www.freerepublic.com/focus/chat/3865839/posts?page=692#692