An interesting link. It's a time lapse map showing all of the quakes and aftershocks in Japan starting on March 11th. The 9.0 comes in the early afternoon and the action really picks up from there. You can see all of the shakes some of us here have been experiencing since the big one.
http://www.japanquakemap.com/
Looking at the TV news today, looks like some damage occured in the Miyagi area from the 7.4 quake last night. The shaking was quite severe there.