The fifth biggest earthquake ever just struck northern Japan, near Sendai. Most people in Tokyo are okay, but an oil refinery in Chiba is on fire and the tip of Tokyo Tower is apparently bent. A 900-person strong emergency team is out to help, and foreign aid may be on its way. So far, no radioactive leaks, but that could change. People are being encouraged not to get in their cars but to walk to the highest point possible.