Images show the sunspot region of the latest C 2.4 peaking at 13:42 UTC. Seems its the old region 1396 which rotates off the west limb . After and before this flare peaks, we noticed ejections on SDO.
Around 10:00 UTC we can see a CME on STEREO A images that match's with the channel eruption on the west limb.
http://stereo.gsfc.nasa.gov/browse/2012/01/21/ahead_20120121_cor2_512.mpg






