Institut prikladnoy geofiziki

Powerful M-class solar flares expected on June 15-16
Powerful M-class solar flares expected on June 15-16

This is the second-highest power level, but a strong geomagnetic storm on Earth is not yet predicted

Space Alarm: M-Class Solar Flares Occur - What to Expect on Earth
Space Alarm: M-Class Solar Flares Occur - What to Expect on Earth

Events in sunspot groups 4420 and 4425 caught the attention of Russian geophysicists