Solar flares on April 22, 2001
The most powerful solar flare in 24 hours
M3.2 (strong) flare - April 22 at 4:44 PM
Solar activity index
Value as of the end of the day on April 22, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 21, 2001 to April 22, 2001
Time zone — UTC-04 (Dover) — summer time
List of solar flares for April 22, 2001
The total number of solar flares of class C and higher — 14 flares
C class — 12 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.3 | 23:29 | 23:33 | 23:47 | — |
| M1.0 | 21:19 | 21:28 | 21:37 | 9433 |
| C3.8 | 18:36 | 18:41 | 18:45 | 9433 |
| C3.5 | 17:44 | 18:05 | 18:17 | 9433 |
| C1.7 | 17:33 | 17:37 | 17:43 | 9433 |
| M3.2 | 16:37 | 16:44 | 16:47 | 9433 |
| C2.2 | 13:02 | 13:07 | 13:13 | 9433 |
| C2.1 | 11:08 | 11:12 | 11:14 | — |
| C1.1 | 06:50 | 06:54 | 06:57 | — |
| C4.0 | 06:11 | 06:18 | 06:27 | — |
| C1.8 | 04:40 | 04:46 | 04:50 | — |
| C1.9 | 04:27 | 04:30 | 04:33 | — |
| C3.7 | 04:09 | 04:13 | 04:18 | 9433 |
| C2.8 | 01:11 | 01:20 | 01:22 | 9433 |