Enenews alerted us of an earthquake in North Eastern Japan ( here ).
Unit 4 appears as if its bleeding neon pink. I often wonder whether fission activity at Daiichi is accelerated when the earth moves:
More screenshots are available here: https://www.dropbox.com/s/q293r7wjhzaksdm/April%2014%202014%20Quake%20Near%20Fukushima%20Red%20Skies%20TEPCO%20cam.pdf
I think the pink emissions from unit 4 must stem from the spent fuel or machinery pool.
In contrast, I think reactions that occur underground (in the melted fuel in the river under the plant) and/or in the water storage tanks result in the heavy pixilation and fog we see suddenly and the more effuse pink glow.