Solar flares on May 4, 2025
The most powerful solar flare in 24 hours
C5.4 (normal) flare - May 4 at 2:31 PM
Solar activity index
Value as of the end of the day on May 4, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 3, 2025 to May 4, 2025
Time zone — UTC+02 (Berlin) — summer time
List of solar flares for May 4, 2025
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.3 | 19:40 | 19:46 | 19:49 | 4079 |
| C1.8 | 18:14 | 18:27 | 18:31 | 4082 |
| C1.4 | 17:56 | 18:06 | 18:14 | 4082 |
| C5.4 | 14:26 | 14:31 | 14:40 | 4082 |
| C2.4 | 13:22 | 13:33 | 13:42 | 4082 |
| C1.7 | 11:58 | 12:10 | 12:27 | 4082 |
| C1.4 | 08:27 | 08:34 | 08:43 | 4081 |
| C1.2 | 01:33 | 01:39 | 01:42 | 4079 |