Today a major flare was produced on the sun by active sunspot AR2673. For sure this was the most powerfull one since the last 15 years. According the SIDC the X-ray flare Is classified as class X9.3 up to class X10.0. Earlier today, this region was responsable for a strong flare class X2.2
The strongest class X9.3 (X10.0) flare also generated a short blackout (region short wave and within Europe, Asia and Africa) and generated a CME which is heading Earth.
