Japanese officials said the blast destroyed the building but that the reactor housing was still intact.
Japan has received offers from more than 70 rescue services from around the world. Crews from Australia, New Zealand, and South Korea are set to join a 150-member team on its way from the US.
A nuclear plant in Japan is said to declare a state of emergency, as backup power used to cool three reactors runs low. Help is on the way. 'It's a dicey situation,' says nuclear specialist in US.
8.9 earthquake: There have been no reports of radiation leaks from any of Japan's nuclear plants in the wake of the devastating earthquake. But two reactors are in danger of core melt, say experts.
These false-color images taken by NASA’s Terra satellite show the city of Ishinomaki, northern Japan on August 8, 2008 (top) and March 14, 2011. Ishinomaki is one of several coastal cities brutalized by the swirling wall of waves from the tsunami caused by the earthquake that devastated northern Japan on March 11. Water is dark blue in this false-color image. Plant-covered land is red, exposed earth is tan, and the city is silver.
At least a dozen nuclear power plants have shut down across the country and millions of buildings around Tokyo were left without power from the Japan earthquake.
Flames rise from houses and debris half submerged by a tsunami in Sendai, Miyagi Prefecture, on March 11.
The gender gap yawns wide, despite Japan's female astronaut and new antidiscrimination laws. The World Economic Forum recently downgraded Japan three spots to 101st place on its latest gender discrimination report.
The new government of Prime Minister Yukio Hatoyama has vowed to boost financial support for parents in an effort to increase its birthrate, one of the lowest in the world.
The island nation seeks to carve out a bigger role in world affairs as a 'soft power.'