Solar flares on April 4, 2026
The most powerful solar flare in 24 hours
M7.5 (strong) flare - April 4 at 1:17 AM
Solar activity index
Value as of the end of the day on April 4, 2026
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 3, 2026 to April 4, 2026
Time zone — UTC+00
List of solar flares for April 4, 2026
The total number of solar flares of class C and higher — 18 flares
C class — 14 | M class — 4 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.0 | 22:54 | 23:04 | 23:14 | 4409 |
| C7.9 | 19:35 | 19:47 | 20:05 | 4409 |
| C1.7 | 18:48 | 19:00 | 19:10 | 4409 |
| C2.8 | 17:02 | 17:15 | 17:24 | 4409 |
| C1.7 | 16:18 | 16:25 | 16:32 | 4409 |
| C1.6 | 15:00 | 15:15 | 15:35 | 4409 |
| C1.7 | 13:29 | 13:39 | 13:44 | 4409 |
| M1.2 | 11:58 | 12:11 | 12:22 | 4409 |
| C1.2 | 11:24 | 11:34 | 11:46 | 4409 |
| M1.7 | 07:38 | 07:58 | 08:14 | 4409 |
| C2.2 | 06:52 | 07:01 | 07:11 | 4409 |
| C2.9 | 06:01 | 06:14 | 06:21 | 4401 |
| C1.0 | 05:49 | 05:54 | 05:58 | 4409 |
| C2.6 | 04:19 | 04:35 | 04:51 | 4409 |
| C2.2 | 03:16 | 03:30 | 03:41 | 4409 |
| C1.7 | 02:51 | 02:58 | 03:02 | 4409 |
| M7.5 | 01:07 | 01:17 | 01:23 | 4409 |
| C2.3 | 00:26 | 00:41 | 00:54 | 4409 |