A new commentary by Mac Salvo says that such off the charts radiation could hit Tokyo, because of the Fukushima nuclear accident. Writes Salvo:
While it has for the most part disappeared from mainstream view, the Fukushima nuclear disaster is anything but over. In fact, the situation in Japan has gone from bad to worse.Salvo's full argument for why this may occur is here
Bottom line: There is no way to contain the radiation.
Even more alarming is that the U.S. Nuclear Regulatory Commission (NRC) and other agencies have warned that the nuclear storage pools (the containment units that are being used to cool the nuclear fuel) have been damaged and may collapse under their own weight.
Such an event would cause widespread nuclear fallout throughout the region and force the government to evacuate the nearly 10 million residents of Tokyo and surrounding areas, a scenario which government emergency planners are now taking into serious consideration.
During the early days of the Fukushima disaster, some EPJ readers with strong nuclear backgrounds added comments to the then discussion. I am no expert in nuclear meltdowns, so I invite any readers, who have such a background, to comment again and evaluate Salvo's warning.