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Bulletin on solar and geomagnetic activity Solar activity report
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Sunspot regions
Coronal holes
Kp values
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Solar wind (Speed, Density), Interplanetary Magnetic Field (IMF) (Bt, Bz)
X7.1 solar flare with earth-directed CME
A major X7.1 solar flare (R3 radio blackout) peaked on 1 October at 22:20 UTC. The eruption took place around complex Beta-Gamma-Delta sunspot region 3842 close to the center of the earth-facing solar disk. This was in fact the second strongest solar flare of the current Solar Cycle thus far! An exciting jump in solar activity after a relatively quiet period with multiple potent sunspot regions currently on the solar disk!
Latest news
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Latest forum messages
AR4062 45Incoming & Unnumbered Active Regions 1755AR4064 132025/04/12-13 Filament CMEs 2025/04/16 G3 Watch 535GLE. Ground Level Enhancements 12
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/15 | M1.2 |
| Last geomagnetic storm | 2025/04/16 | Kp8- (G4) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 120.5 -13.7 |
| Last 30 days | 116.6 -25.7 |