Reactor 2's suppression pool has now exploded with a high chance that it's containment shield has been breached; and Reactor 4 building has an out of control fire inside it and possibly leaking radioactive material too. They're evacuating all but 50 workers at the plant and people between 20-30 kilometres away are told to stay indoors. Radiation reading around the plant have reached up to 100 millisieverts (100,000 microsieverts) which is dangerous to human health.
TL;DR: Japan is very likely fucked.
EDIT: Now it's 400 millisieverts, but I can't confirm that.