BBC News, Tokyo
With train services suspended, there are millions of people on the streets of Tokyo tonight. The official advice is, if you're safe, to stay where you are. But after the shock of the quake many people just want to get home.
Here in Tokyo, even though it wasn't the epicentre, the quake was still felt very powerfully. The ground rolled and rumbled underfoot and you could hear the great skyscrapers creaking and cracking as they swayed.
Walking was like crossing the deck of a ship at sea. People poured down from their offices and stood in the street staring up.