Following the explosion at a quake-hit nuclear plant in Japan, a state of emergency has been declared at a second facility due to excessive radiation levels there. Japanese authorities have informed the IAEA that the first or lowest state of emergency at the Onagawa nuclear power plant has been reported by Tohoku Electric Power Company. The alert was declared as a consequence of radioactivity readings exceeding allowed levels in the area surrounding the plant. Japanese authorities are investigating the source of radiation. According to the authorities, the three reactor units at the Onagawa nuclear power plant are under control.Meanwhile, broadcaster NHK, quoting a police official, said more than 10,000 people may have been killed as the wall of water triggered by Friday's 8.9-magnitude quake surged across the coastline, reducing whole towns to rubble. Authorities have set up a 20-km exclusion zone around the Fukushima Daiichi plant and a 10 km zone around another nuclear facility close by. Around 140,000 people have been moved from the area, while authorities prepared to distribute iodine to protect people from radioactive exposure.Meanwhile, millions of Japanese were without drinking water or electricity today, surviving on instant noodles and rice balls. Kyodo news agency said, almost two million households were without power in the freezing north and about 1.4 million without running water. About 300,000 people were evacuated nationwide, many seeking refuge in shelters, wrapped in blankets, some clutching each other sobbing. Although the government doubled the number of soldiers deployed in the aid effort to 100,000, it seemed overwhelmed by what's turning out to be a triple disaster. Teams searched for the missing along hundreds of miles of the Japanese coast, and thousands of hungry survivors huddled in darkened emergency centres that were cut off from rescuers and aid. Large areas of the countryside were surrounded by water and unreachable. Fuel stations were closed and people were running out of gasoline for their cars.