Solar flares on April 12, 2002
The most powerful solar flare in 24 hours
M4.0 (strong) flare - April 12 at 11:32 PM
Solar activity index
Value as of the end of the day on April 12, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 11, 2002 to April 12, 2002
Time zone — UTC+05:30 (Thane)
List of solar flares for April 12, 2002
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 |
|---|---|---|---|---|
| M4.0 | 23:01 | 23:32 | 23:47 | 9901 |
| C7.7 | 21:27 | 21:33 | 21:42 | 9907 |
| M1.4 | 18:35 | 18:40 | 18:44 | — |
| C3.0 | 14:09 | 14:12 | 14:14 | 9906 |
| C3.4 | 10:18 | 10:42 | 10:49 | 9899 |
| C5.0 | 08:34 | 08:39 | 08:44 | 9907 |
| C1.9 | 08:20 | 08:23 | 08:26 | — |
| C1.8 | 07:12 | 07:16 | 07:23 | 9906 |
| C1.5 | 06:47 | 06:50 | 06:53 | — |
| C1.6 | 04:27 | 04:30 | 04:36 | 9893 |
| C7.2 | 00:03 | 00:08 | 00:13 | — |