So 2km of a river disappears overnight, and the offical story is that it drained away through that small crack?! (See pictures in link in above post).

Bearing in mind that witnesses heard a huge bang, which one said sounded like a huge detonation.

Is it that this phenomena was caused by some new technology to control flooding? Or perhaps it was an earthquake without the tremor? What is particularly concerning is that this sort of event can be common before big earthquakes. In china a whole lake disappeared before a devastating earthquake.