Japan scrambles as radiation released from quake-hit plants

Obama: Japan earthquake potentially 'catastrophic'

Quake brings modern Tokyo to a standstill

Tsunami-swept Japan ship found, all 81 rescued: Jiji

Emergency declared as tsunami hits US West Coast

Tsunami surge hits Hawaii

S. Korea's air travel to Japan nearly back to normal

Japan quake causes emergencies at 5 nuke reactors

Japan launches gargantuan quake rescue effort

About 130 Koreans unaccounted for in Miyagi, Japan

Seoul stocks likely to be restrained by Middle East, Japan woes