On 11 November 2025, an intense solar flare was observed on the Sun from the solar active region 'NOAA Active Region 14274'. An hour later, a coronal mass ejection (CME) was observed with an initial speed estimated to be around 1500 km/s and arriving at Earth around 12 and 13 November.
Earlier this week, two strong, X-type solar flares were also observed on the Sun from the same solar active region, also generating two CMEs that arrived at Earth, triggering a severe geomagnetic storm of intensity G4.
