Solar flares on September 30, 2001
The most powerful solar flare in 24 hours
M1.2 (strong) flare - September 30 at 6:36 PM
Solar activity index
Value as of the end of the day on September 30, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 29, 2001 to September 30, 2001
Time zone — UTC-03 (Halifax) — summer time
List of solar flares for September 30, 2001
The total number of solar flares of class C and higher — 11 flares
C class — 9 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.2 | 18:29 | 18:36 | 18:45 | — |
| C5.1 | 16:46 | 17:14 | 17:29 | — |
| C4.4 | 15:41 | 15:45 | 15:51 | 9636 |
| C5.1 | 14:44 | 14:52 | 14:57 | — |
| C6.6 | 14:27 | 14:33 | 14:36 | 9628 |
| M1.0 | 08:31 | 08:41 | 09:19 | 9628 |
| C3.3 | 06:40 | 06:42 | 06:45 | 9637 |
| C6.1 | 05:10 | 05:39 | 05:45 | 9636 |
| C5.8 | 03:49 | 03:53 | 04:04 | 9636 |
| C8.4 | 02:29 | 03:06 | 03:20 | 9636 |
| C8.3 | 00:38 | 01:01 | 01:18 | — |