Stay safe rolex, remember the christchurch hit last month was an "aftershock" from the 7.1 from last year. They reckon anything over 7 and you're guaranteed within an order of magnitude afterhock within 6 months. And the christchurch "aftershock" exerted more than twice the force on christchurch that you got in sendai - even though it was only a 6.3 (I suggest your read here: http://en.wikipedia.org/wiki/Peak_ground_acceleration ). Get yourself organized and prepared for a nasty aftershock, people here got caught with their pants down because they didn't.
Been doing a lot of reading up on quakes lately 
South Eastern most corner of California continues to receive +5.0 aftershocks, 11 months after the 7.2 hit on Easter 2010. Those aftershocks will probably occur every few minutes for a few days, then hourly for a few weeks, then daily, then weekly up to a year later.
http://www.youtube.com/watch?v=oeB-e3yBIhoCheck for new cracks, gas leaks and anything else out of the ordinary around your house and neighborhood. Prayers are being made for all those in Japan, who will be affected by this natural disaster, in one way or another.
Stock up on water and dry foods, in case power goes out again, you'll still be able to brush your teeth, shower and drink when the water pumps no longer work.
