X5.1 class solar flare recorded this Tuesday causes radio blackouts in parts of Europe and Africa. The event occurred around 5 am Brasília time and interrupted air, sea and emergency transmissions. The explosion came from sunspot AR4274, active in recent days.
Authorities monitor possible coronal mass ejection aimed at Earth. The cloud of particles travels at around 4,800 km per second. Expected impact occurs between Tuesday night and Wednesday.
- Outage affected GPS and radar signals.
- Satellite communications experienced temporary failures.
- Flights on polar routes face increased radiation risk.
Source of explosion
Sunspot AR4274 produced the most intense eruption of the year. Scientists recorded the peak at 5 am Brasília.
The event surpassed two previous explosions emitted on November 9th and 10th from the same solar region.
Immediate effects seen
High-frequency transmissions suffered a total blackout in affected areas. Europe and Africa recorded minute-long outages.
Emergency systems and maritime navigation operated with limitations during the period.
El Sol is a living star. If it moves, it changes inite energy. The sunspots that can be seen on its surface are signs of its magnetic activity. Ayer our astrophotographer Nelson Ortega Torres @nelsonastrofoto captured sunspot AR4274. This active sunspot has… pic.twitter.com/DzIlZCVExz
— Ada Monzón (@adamonzon) November 11, 2025
Coronal ejection monitoring
Energetic particles head towards the planet. Measured speed reaches 4,800 km per second.
NOAA issued a G3 level alert for a geomagnetic storm. Forecast indicates arrival in the next few hours.
Infrastructure risks
Electrical networks can suffer fluctuations in high latitude regions. Satellites in low orbit face the possibility of electrical failures.
- Passengers on polar flights receive precautionary guidance.
- Radiation exposure increases slightly on these routes.
- Operators adjust routes to minimize impacts.
Expected visible phenomena
Aurora borealis become visible at mid-latitudes in the United States. Regions such as Pennsylvania, Iowa andOregon watch the night sky.
The spectacle occurs due to the interaction of particles with the Earth’s magnetic field.
History of similar events
Only 75 such eruptions have been documented since 1942. Their rarity highlights the intensity of the current solar cycle.
Stain AR4274 maintains high activity and requires continuous monitoring.
Contingency measures adopted
Satellite operators preemptively adjust orbits. Airlines reroute polar flights when necessary.
GPS systems activate backup modes to maintain accuracy during disturbances.
Solar activity on the rise
Solar cycle reaches peak predicted for 2025. Spots like AR4274 indicate maximum phase of eruption production.
Continuous monitoring takes place by space agencies around the world.
