FUKUSHIMA, Japan —
This crisis has led to power shortages and factory closures, hurt global manufacturing and triggered a plunge in Japanese stock prices.
Police said more than 452,000 people made homeless by the quake and tsunami were staying in schools and other shelters, as supplies of fuel, medicine and other necessities ran short.
On Saturday evening, Japan was rattled by 6.1-magnitude aftershock, with an epicenter just south of the troubled nuclear plants. The temblor, centered 150 kilometers (90 miles) northeast of Tokyo, caused buildings in the capital to shake.
Yuasa reported from Tokyo, as did Associated Press writers Mari Yamaguchi, Elaine Kurtenbach, Tim Sullivan, and Jeff Donn.