Solar flares on October 25, 2021
The most powerful solar flare in 24 hours
M1.3 (strong) flare - October 25 at 6:47 PM
Solar activity index
Value as of the end of the day on October 25, 2021
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 24, 2021 to October 25, 2021
Time zone — UTC-08 (Anchorage) — summer time
List of solar flares for October 25, 2021
The total number of solar flares of class C and higher — 11 flares
C class — 10 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.8 | 21:56 | 22:04 | 22:10 | 2887 |
| C1.9 | 21:20 | 21:25 | 21:29 | — |
| C2.3 | 20:27 | 20:33 | 20:37 | 2889 |
| C2.0 | 19:18 | 19:24 | 19:29 | 2889 |
| M1.3 | 18:40 | 18:47 | 18:54 | — |
| C3.5 | 17:43 | 17:50 | 17:56 | 2889 |
| C9.3 | 16:48 | 17:04 | 17:13 | — |
| C1.9 | 16:12 | 16:19 | 16:30 | 2887 |
| C1.6 | 15:31 | 15:34 | 15:38 | — |
| C4.4 | 13:55 | 14:03 | 14:16 | — |
| C8.5 | 11:47 | 11:56 | 12:01 | — |