Solar flares on April 4, 2002
The most powerful solar flare in 24 hours
M6.1 (strong) flare - April 4 at 3:32 PM
Solar activity index
Value as of the end of the day on April 4, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 3, 2002 to April 4, 2002
Time zone — UTC+00
List of solar flares for April 4, 2002
The total number of solar flares of class C and higher — 9 flares
C class — 7 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.0 | 23:02 | 23:06 | 23:08 | — |
| C2.0 | 21:53 | 21:58 | 22:03 | 9893 |
| M6.1 | 15:24 | 15:32 | 15:38 | — |
| C3.0 | 14:33 | 14:36 | 14:40 | 9885 |
| C2.9 | 14:13 | 14:18 | 14:22 | — |
| M1.4 | 10:41 | 10:48 | 10:54 | — |
| C3.0 | 06:51 | 06:54 | 06:56 | 9888 |
| C9.8 | 04:23 | 04:41 | 04:57 | 9893 |
| C2.8 | 03:33 | 03:36 | 03:39 | 9893 |