Solar flares on April 4, 2025
The most powerful solar flare in 24 hours
C4.4 (normal) flare - April 4 at 3:46 PM
Solar activity index
Value as of the end of the day on April 4, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 3, 2025 to April 4, 2025
Time zone — UTC+01 (London) — summer time
List of solar flares for April 4, 2025
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.4 | 15:34 | 15:46 | 15:53 | 4052 |
| C2.2 | 14:24 | 14:28 | 14:32 | 4043 |
| C3.3 | 11:07 | 11:24 | 11:49 | 4043 |
| C1.8 | 08:27 | 08:34 | 08:37 | 4048 |