It's basically about an earthquake with a magnitude of 8.0 hitting Tokyo, and how the citizens deal with the tragedy. It mostly follows these 2 little kids who are trying to make their way home to find their parents who they haven't been able to contact. City gets completely destroyed etc etc..
The series was released in 2009, and it takes place in 2012. Also, I think i read somewhere that they created this series from knowing that there was a high possibility that an earthquake of high magnitude would be hitting Japan in the near future. So knowing this they told the story on how they thought people would deal with the disaster.
So if anybody wants to watch it, it's only 11 eps. I don't watch that many series lately, but this was an exception for me. Amazingggg, and the ending made me cry. ):
[Image: http://www.jamaipanese.com/gallery/thumbs/lrg-1095-tokyo-magnitude-8-0-anime-poster.jpg]
http://www.youtube.com/watch?v=oe0Q-279CzM