North of Sendai
This area, which includes Minamisanriku and the Onagawa nuclear plant, was closest to the epicenter of the quake. In Minamisanriku alone, more than 10,000 people are missing.

Images borrowed from NY Times Article:
http://www.nytimes.com/interactive/2011/03/13/world/asia/satellite-photos-japan-before-and-after-tsunami.html?_r=0