Solar flares on October 25, 2001
The most powerful solar flare in 24 hours
X1.3 (very strong) flare - October 25 at 8:02 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-07 (Seattle) — 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 |
|---|---|---|---|---|
| C4.3 | 22:46 | 22:54 | 22:58 | — |
| C7.8 | 21:17 | 21:21 | 21:27 | 9678 |
| C4.5 | 18:37 | 18:45 | 19:04 | 9678 |
| C3.8 | 16:42 | 16:48 | 16:54 | 9678 |
| C6.1 | 15:50 | 15:54 | 15:58 | — |
| C5.3 | 15:06 | 15:10 | 15:13 | — |
| C8.9 | 14:44 | 14:47 | 14:50 | — |
| C5.9 | 14:34 | 14:37 | 14:42 | — |
| C6.6 | 14:16 | 14:20 | 14:24 | 9678 |
| C4.4 | 13:45 | 13:49 | 13:54 | 9678 |
| C7.5 | 12:19 | 12:23 | 12:31 | 9678 |
| X1.3 | 07:42 | 08:02 | 08:28 | 9672 |
| C2.2 | 06:50 | 06:54 | 06:58 | — |
| C4.3 | 05:20 | 05:37 | 05:50 | 9669 |
| C6.3 | 03:39 | 03:47 | 04:00 | — |
| C5.7 | 00:41 | 00:48 | 00:56 | 9678 |