Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Another STRONG X1.5 Flare from Solar Region 4366

Another STRONG X1.5 Flare from Solar Region 4366
published: Thursday, February 5, 2026 14:20 UTC UTC

Solar active region 4366 continues to release strong solar flares, the latest was an X1.5 today at 1418 UTC. Since this region emerged on Jan 30, it already produced 21 C-class, 38 M-class and 5 X-class flares, including an X8.1 on Feb 01 that was accompanied by a Coronal Mass Ejection (CME) that may cause glancing influences near Earth on Feb 05-06. SWPC forecasters continue to monitor the Region 4366 closely.