The second part of the video (after 0:37) is supposedly leaked from NASA. Use full screen mode to be able to read the designations. I think the second part is the true trajectory because of the way it realistically accelerates when nearing the sun (unlike the first part). This trajectory shows there is no connection between the earthquakes and alignments with this 'comet'. So those earthquakes are probably manmade after all.
If this is a genuine leak, we can conclude that NASA secretly acknowledge the existence of Nibiru. The designation in the chart is 'Nibirus Minoris'. Why the 's' and where is the 'Majoris' part?. About in mid Sept 2011 it will come very close to earth. This will be an 'interesting' time.