Not sure what effects it will have but it takes a day days for it to hit earth.
Just further evidence that our sun is in count down for huge activity over the coming years:
This morning around 0500 UT, something exploded on the far side of the sun. NASA's STEREO-A spacecraft had a direct view of the blast, which produced a C4-class solar flare and hurled a bright coronal mass ejection (CME) over the sun's western limb
Based on STEREO-A imagery, the source of the eruption appears to be farside sunspot complex 1093-1099. Magnetic fields connecting the two sunspot groups became unstable and--bang! The blast was not directed toward Earth, so no geomagnetic storms are in the offing. SpaceWeather
You can watch the Sun live here on NASA's SDO Observatory Rate this posting: