At 3:40pm local time in Japan's Fukushima Prefecture, an explosion shook the Fukushima Daiichi nuclear plant. Four people were reported injured from the initial blast, but broader concerns over increased radiation leakage have lead officials to double the evacuation zone around the plant from 6 to 12 miles. What the ultimate fallout will be is anyone's guess.
The Daiichi plant is one of the two that experienced cooling failure early after yesterday's devastating quake, and was teetering on the brink of a meltdown just hours ago. According to Tokyo Electric Power Company, the explosion happened "near" but not in the Unit 1 reactor. Radiation levels had reached 1,000 times above normal in a reactor control room at the plant, and more troublingly levels had reached 8x normal near the main gate.