How do they fix giant sink holes like the one in Guatemala?

The enormous amounts of heavy rain dumped on Guatemala from the Hurricane Agatha has caused land everywhere to become very soft. Get it soft enough, and if falls away, especially from sides of mountains. In this case, it likely moved the ground just enough to open what's been about to happen for a log time. Earthquakes apparantly haven't opened up the top of it, so just the mud being slippery enough did the trick. As far as fixing it? I doubt it! Who has the money and the time? It's Guatemala. Not everyone is as poor as they are made out to be, but someone just lost a 3-story building. I doubt there's that kinda money laying around to fix it. Cement is very expensive in comparison to wages. Life is tough here.