Solar flares on April 22, 2001
The most powerful solar flare in 24 hours
M3.2 (strong) flare - April 22 at 3:44 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-05 (Springfield) — summer time
List of solar flares for April 22, 2001
The total number of solar flares of class C and higher — 15 flares
C class — 13 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.1 | 23:37 | 23:52 | 00:00 | 9433 |
| C1.3 | 22:29 | 22:33 | 22:47 | — |
| M1.0 | 20:19 | 20:28 | 20:37 | 9433 |
| C3.8 | 17:36 | 17:41 | 17:45 | 9433 |
| C3.5 | 16:44 | 17:05 | 17:17 | 9433 |
| C1.7 | 16:33 | 16:37 | 16:43 | 9433 |
| M3.2 | 15:37 | 15:44 | 15:47 | 9433 |
| C2.2 | 12:02 | 12:07 | 12:13 | 9433 |
| C2.1 | 10:08 | 10:12 | 10:14 | — |
| C1.1 | 05:50 | 05:54 | 05:57 | — |
| C4.0 | 05:11 | 05:18 | 05:27 | — |
| C1.8 | 03:40 | 03:46 | 03:50 | — |
| C1.9 | 03:27 | 03:30 | 03:33 | — |
| C3.7 | 03:09 | 03:13 | 03:18 | 9433 |
| C2.8 | 00:11 | 00:20 | 00:22 | 9433 |