The solar flare of 2 April 2001 observed by the EIT on SOHO
Active region 9393 unleashed a major solar flare on Monday evening at 21:51 UT, 2 April 2001.
This was classified as an X17 flare, probably the strongest flare since 16 August 1989 when an X20 flare occurred. It was slightly more powerful that the famous 6 March 1989 flare which was related to the disruption of the power grids in Canada.
Todays big explosion, near the Sun's northwest limb, hurled a coronal mass ejection (CME) into space - but apparently not toward Earth. Thus, the impacts from this on Earth will probably be less severe.