Following are main developments in the earthquake measuring 8.9 that struck northeast Japan on Friday.
- Quake triggers tsunami up to 10 metres (30 feet), waves sweep across farmland, sweeping away homes, crops, vehicles, triggering fires. Tsunami warnings up to 10 metres (30 feet)
- Several people buried in landslide. One person reported killed.
- Power cut to four million homes in and around Tokyo
- Many sections of Tohoku expressway serving northern Japan damaged. Major fire at Chiba refinery near Tokyo.
- Bullet trains to the north of the country stopped
- Tokyo's Narita airport closed, flights halted, passengers evacuated. Tokyo underground, suburban trains halted.
- Eight military planes scrambled to survey damage. Prime Minsiter Naoto Kan orders militaty to do utmost to act in response to quake. Cabinet to meet. The government says more tsunami possible.
- Central bank vows to do utmost to ensure financial market stability
- Several nuclear power plants shut down automatically. At least one station operating normally.