On February 6, 2025, at 11:04 UTC, Active Region 3981 on the Sun emitted a significant M7.6-class solar flare. The event commenced at 10:47 UTC and concluded at 11:16 UTC. Notably, this flare did not produce a coronal mass ejection (CME). However, due to the region's current position as it moves out of the Earth-strike zone, there remains a possibility of Earth-directed CMEs occurring today or tomorrow. Additionally, magnetically complex regions approaching the Sun's western limb may lead to elevated proton levels, potentially reaching S1 (Minor) storm levels through February 8.
A 10 cm radio burst accompanied the flare, peaking at 8,100 solar flux units and lasting one minute. Such bursts can cause short-lived but significant radio noise, potentially interfering with sensitive receivers, including radar, GPS, and satellite communications. At the time of the flare, radio frequencies over Africa were forecasted to experience the most degradation.
As of now, there have been no radio signatures indicating the production of a CME associated with this flare. Updated coronagraph imagery displays a northward CME, which does not appear to be related to this particular event.
Given these developments, there is a potential for minor geomagnetic disturbances on Earth through February 8. Individuals, especially those sensitive to magnetic fluctuations, are advised to monitor their health and take necessary precautions. Technological systems, particularly those reliant on satellite communications and GPS, should be monitored for potential disruptions.
For continuous updates on space weather and its potential impacts, please refer to official sources such as the National Oceanic and Atmospheric Administration (NOAA) and the Space Weather Prediction Center (SWPC).
