I've seen quite a few reports of large aftershocks and it always turned out to be a mediocre one.
Depends what large is, not a 9.0 doesn't make it small, and you've got a country of wound up, tired, shaken, sad people, a 2.0 would be pretty terrifying at the moment.
You say that as though it is even remotely comparable to the effect of a magnitude 9 earthquake and 10m tsunami. When we had a bit of flooding it did not cause a state of emergency with nuclear plants melting down, loss of power and tens of thousands dead.
Thats not the point and I didn't even remotely suggest they were comparable, however a person dies in a Tsunami, a person dies in a flash flood, area's devestated, people dead, emergency work going on, on the other side of the country, that didn't happen. Do you think after every emergency anywhere in the world the guys on the other side of the country just didn't go to work? Countries would fall apart if no one went to work for 4 days.
THe fact is a banker in Tokyo can't search for dead bodies, stop a meltdown, generate electricity, but he can do his job so thats what he does. The stock market is open, supermarkets are open, the police, army, nurse, doctors, airport staff, train staff, power grid staff, plumbers, electricians, people are needed and they are all working. Petrol stations are open, farms that weren't damaged can't just ignore their work. Most of the country will get on with it, even in such a insanely difficult situation. Some people can't go to work, some can, some won't want to, plenty of people did go to work.