Just went down to the supermarket to see what Japanese people are doing. What Japanese people are doing is emptying the shelves. A shop sign says that there have been no deliveries. There is no bread, rice, cereals, tofu, or sushi. Packet food is gone and there are few tinned goods (still a lot of spam and sardines, I see). There is plenty of beer and milk. I stocked up on water, toilet paper, milk and nuts.
Power outtages start tomorrow and will last for 3 hours.
According to the government, there is a 70% chance of an aftershock in the 7 magnitude region within the next 3 days, so for the next 3 days I am staying put.