Children cuddle each other while their mother makes a phone call as they are stranded at Sendai railway station in Sendai, Miyagi Prefecture, Friday, Dec. 7, 2012. (AP Photo/Kyodo News)
Photos: Quake shakes Japan
A powerful earthquake off Japan's northeastern coast rattled buildings in Tokyo and triggered small waves.
Tsunami warning lifted for Japan quake
Japan utility: Crisis was avoidable
