These incoming particles will probably cause an increase in Northern/Southern Lights (Aurora Borealis/Australis). The earth has a 'Van Allen Radiation Belt' surrounding it - http://en.wikipedia.org/wiki/Van_Allen_Belt - which takes magnetically charged particles, often fired from the sun, and blasts them back down to earth. Upon impact with the planet's atmosphere, beautiful Auroras can be created.
However, satellites can't orbit anywhere nearby the Van Allen Belt, as obviously these radiating particles can damage sensitive instruments. I'd guess by the size of this mass ejection, a geomagnetic storm will be created. Wikipedia has a good list of the various negative effects of these things: http://en.wikipedia.org/wiki/Geomagnetic_storm#Geomagnetic_s...
Of course, it depends on the direction the eruption was aiming as a primary factor. This wonderful image - http://en.wikipedia.org/wiki/File:Magnetosphere_rendition.jp... - shows a perfect example of the Van Allen Belt. If you tip your head 90 degrees to the left, it kind of looks like an angel around earth - the 'halo area' is the main Van Allen Belt loop causing Auroras by firing the particles towards each polar cap.
(Disclaimer: I have an interest in astronomy, but nothing to put to my name except for a B-grade Astronomy GCSE - it's likely much of that explanation is scientifically inaccurate, but, I tried my best! :)