Our family is going to move to Japan and buy a house in near the Fukushima site and plan to live there year round. There is open land where we can grow our own vegetables and the area is not overpopulated. There are some really great deals on real estate, particularly near the Fukushima plant and I think it will be a good investment in our future.
Beware of the elevation sbove sea level that you choose. There are ancient monuments located above the Fukushima plant elevation carved in obscure kangi that state (loosely translated): "Do not build at elevations below this mark because of tsunami floods".