Solar flares on October 22, 2025
The most powerful solar flare in 24 hours
C4.7 (normal) flare - October 22 at 2:52 AM
Solar activity index
Value as of the end of the day on October 22, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 21, 2025 to October 22, 2025
Time zone — UTC+01 (London) — summer time
List of solar flares for October 22, 2025
The total number of solar flares of class C and higher — 6 flares
C class — 6 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.4 | 14:25 | 14:38 | 14:45 | — |
| C4.2 | 08:02 | 08:20 | 09:08 | — |
| C1.8 | 07:31 | 07:36 | 07:41 | — |
| C4.7 | 02:07 | 02:52 | 03:03 | 4259 |
| C4.4 | 01:19 | 01:34 | 01:51 | 4257 |
| C1.5 | 00:36 | 00:47 | 00:53 | — |