I think the real issue is more about WHERE it's happening - - the locations that had troubles 50 years ago are not the same places that are having those same troubles today (to some degree)
As man has populated the earth, he has had to venture further out in search of a place to live/build homes. We have encroached in areas with our houses, that should not have been built on. Flood zones, come to mind. Near fire prone areas,