[cdavid]

There is an evacuation zone of 20 km around the plant, and people between 20 and 30 km advised to not go out. The radiations around the plant are now definitely dangerous, but those are far far above the ones seen in Tokyo.

Right now, from what I can read from Japanese news, and assuming the numbers given by the authority are accurate, there is no danger in Tokyo - 20 x normal is still below what's considered dangerous. What worrying about those numbers are not the number themselves, but what it means if the situation in the plants worsen - and I think people don't really know.

The Japanese gvt announced a couple of hours ago that every region in Japan will regularly update measure of radioactivity, which suggest that they don't try to hide too much, although I would not read too much into it either.