Japan raises nuclear crisis rating to highest level
Tuesday, April 12, 2011 - 01:00
in Earth & Climate
The level 7 rating for the crisis at the quake- and tsunami-stricken Fukushima power plant is based on the amount radiation released. A day earlier, three new quakes hit as Japan announces plans to expand the evacuation zone. Japanese nuclear regulatory officials Tuesday raised the severity rating at the earthquake- and tsunami-damaged Fukushima Daiichi power plant to the highest level by international standards, equaling the 1986 Chernobyl meltdown in the former Soviet Union.