Solar flares on October 25, 2001
The most powerful solar flare in 24 hours
X1.3 (very strong) flare - October 25 at 11:02 AM
Solar activity index
Value as of the end of the day on October 25, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 24, 2001 to October 25, 2001
Time zone — UTC-04 (Quebec) — summer time
List of solar flares for October 25, 2001
The total number of solar flares of class C and higher — 16 flares
C class — 15 | M class — 0 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.5 | 21:37 | 21:45 | 22:04 | 9678 |
| C3.8 | 19:42 | 19:48 | 19:54 | 9678 |
| C6.1 | 18:50 | 18:54 | 18:58 | — |
| C5.3 | 18:06 | 18:10 | 18:13 | — |
| C8.9 | 17:44 | 17:47 | 17:50 | — |
| C5.9 | 17:34 | 17:37 | 17:42 | — |
| C6.6 | 17:16 | 17:20 | 17:24 | 9678 |
| C4.4 | 16:45 | 16:49 | 16:54 | 9678 |
| C7.5 | 15:19 | 15:23 | 15:31 | 9678 |
| X1.3 | 10:42 | 11:02 | 11:28 | 9672 |
| C2.2 | 09:50 | 09:54 | 09:58 | — |
| C4.3 | 08:20 | 08:37 | 08:50 | 9669 |
| C6.3 | 06:39 | 06:47 | 07:00 | — |
| C5.7 | 03:41 | 03:48 | 03:56 | 9678 |
| C5.4 | 02:24 | 02:30 | 02:39 | 9672 |
| C5.2 | 01:16 | 01:21 | 01:25 | 9672 |