Jan Mikael (16 Feb 2011)
"Info: First X-flare of the New Solar Cycle"

 
> Space Weather News for Feb. 15, 2011
> http://spaceweather.com

> MAJOR FLARE:  Earth-orbiting satellites have detected the strongest solar flare in more than four years.  At 0156 UT on Feb. 15th, giant sunspot 1158 unleashed an X2-class eruption.  X-flares are the strongest type of x-ray flare, and this is the first such eruption of new Solar Cycle 24. The explosion that produced the flare also sent a solar tsunami rippling through the sun's atmosphere and, more importantly, hurled a coronal mass ejection toward Earth. This raises the possibility of geomagnetic storms in the days ahead. Visit http://spaceweather.com for images and updates.