Richard, those cities you mention were not significantly affected by the earthquake, and were not hit by the devastating tsunami. They are also sufficiently remote from the site of the failing nuclear reactors in Fukushima for fallout not to be a concern.
However, all of Japan is sharing the after effect of the disaster. The nation's capacity to generate power is significantly reduced because several nuclear plants have been shut down as a result of the quake and tsunami.
So expect intermittent power outages all over Honshu (the main island). This may affect "bullet" train schedules and other essential services.
For Japan outside of those north-eastern prefectures life is going on as near-normal. A work colleague tells me he spoke to a friend who lives in the north-west (about 200km west of Fukushima, but over a large mountain range) and he's going to work everyday as normal. Even in Tokyo (and remember there is a DO NOT TRAVEL alert for Australians) life is going on, although with a much heightened sense of fear.
The authorities are insisting that if you remain more than 80kms from the Fukushima Dai-Ichi nuclear plant you will not be exposed to any significant radiation. Even a predicted wind change on Sunday which will blow any radiation back over the mainland is not predicted to have an affect outside that exclusion zone. That's as long as the situation doesn't get worse. Obviously the entire north-east coast is off limits (The freeways are closed anyway).
But the places you mentioned are, at the moment, as 'safe' as they ever were. (With the exception of the area around Mt Shinmoedake in the far south of Honshu where a volcano has erupted again).
Don't forget, Japan sits on the 'pacific ring of fire' and earthquakes and volcanic eruptions are quite common, and yet unpredictable.
Phil about 8 years ago