My wife doesn't want to hear about me buying a houseboat. I need to make her watch more Midwest news. It isn't flooding where I live, high on the edge of the plain, but we are also having record rainfalls.
But if it floods, and then the fault line ruptures, wouldn't that create a huge waterfall that would suck your houseboat into the center of the earth? I think Jules Verne wrote a documentary on that once. You might want to rent that movie to watch before making up your mind.