Solar flares on October 31, 2001
The most powerful solar flare in 24 hours
M3.2 (strong) flare - October 31 at 1:09 AM
Solar activity index
Value as of the end of the day on October 31, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 30, 2001 to October 31, 2001
Time zone — UTC-07 (Kamloops) — summer time
List of solar flares for October 31, 2001
The total number of solar flares of class C and higher — 9 flares
C class — 5 | M class — 4 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.3 | 23:45 | 23:53 | 00:00 | 9678 |
| C3.2 | 23:20 | 23:26 | 23:35 | — |
| C3.6 | 20:46 | 20:50 | 20:57 | — |
| C3.3 | 17:34 | 17:39 | 17:44 | — |
| C2.4 | 16:14 | 16:19 | 16:26 | — |
| M1.0 | 14:02 | 14:42 | 14:55 | 9687 |
| C5.6 | 09:01 | 09:05 | 09:08 | 9682 |
| M1.5 | 03:39 | 03:51 | 04:00 | — |
| M3.2 | 00:34 | 01:09 | 01:19 | 9682 |