On February 1, 2013, Tokyo Electric Power released over 100 Zipped files containing several hundred photos of the Fukushima Daiichi Nuclear Power Station taken from time of the tsunami on March 11, 2011 to April 11, 2011. They are among the earliest TEPCO photos which show the initial damage by the tsunami, aftermath of the explosions and efforts to survey, control and stabilize the plant. Most have not been widely published. These are selections.
Compare to high-resolution aerial photos taken March 24-30, 2011:
Fukushima Daiichi Nuclear Power Station Early Photos
Photos of March 15, 2011. Captions by TEPCO.
Appearance of Unit 3 Reactor Building after explosion. Photo taken on 2011.3.15