Hi Mari,

 

Your strategy is a good one as Osaka looks a lot safer.

It may be overkill at this early stage, but better to be safe.

Also there is a very real threat of a second major earthquake near Tokyo - even the Japanese Earthquake Centre has released this information.

 

The situation continues to deteriorate with two more reactors at the plant losing cooling and a second explosion. 
At least one other plant is also in trouble. 
TEPCO is now saying a meltdown is 'possible' at Fukushima. 
The cooling systems are out at 1,2,3, reactors. Sea water is also being used on the other failed reactors. 
The seawater has to be pumped-in continuously and the contaminated seawater is currently being 'held' within the plant. 
There is a question as to what to do with this seawater. Another earthquake could rupture the holding tanks. 
As the seawater boils, steam has to be released (or is released automatically) to prevent excessive pressure and a blow-up. 
Regardless of whether a full-scale catastrophe occurs it seems likely radioactive steam will be released for weeks or months. 
The steam that is released is all from the (sea) water that has been pumped into the reactor itself and then boiled (due to the high reactor temperatures). 
This steam MUST be contaminated - it comes from the reactors. 
It is possible an area of 20-30km surrounding the plant will need to be isolated for up to decades. 
More than 200,000 people have been issued with iodine tablets. 
Hundreds of people have already been confirmed with radiation contamination.