Solar flares on October 4, 2001
The most powerful solar flare in 24 hours
C3.1 (normal) flare - October 4 at 6:03 PM
Solar activity index
Value as of the end of the day on October 4, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 3, 2001 to October 4, 2001
Time zone — UTC+05:30 (Bilaspur)
List of solar flares for October 4, 2001
The total number of solar flares of class C and higher — 10 flares
C class — 10 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.4 | 19:43 | 19:53 | 19:57 | 9644 |
| C3.1 | 17:23 | 18:03 | 18:42 | 9634 |
| C2.3 | 12:01 | 12:04 | 12:06 | 9645 |
| C2.7 | 11:35 | 11:41 | 11:46 | 9645 |
| C2.0 | 09:41 | 09:46 | 09:52 | — |
| C2.6 | 08:38 | 08:42 | 08:47 | 9636 |
| C2.7 | 07:34 | 07:39 | 07:43 | — |
| C2.2 | 07:14 | 07:19 | 07:32 | — |
| C2.6 | 00:51 | 00:55 | 01:01 | 9634 |
| C2.0 | 00:20 | 00:24 | 00:30 | 9645 |
Diary
- 04.08.2026 The magnetic storm has ended
- 02.08.2026 The first magnetic storm of August has begun
- 02.08.2026 A moderate magnetic storm is expected today, Sunday.