Solar flares on June 4, 2025
The most powerful solar flare in 24 hours
C1.6 (normal) flare - June 4 at 11:41 PM
Solar activity index
Value as of the end of the day on June 4, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 3, 2025 to June 4, 2025
Time zone — UTC+01 (London) — summer time
List of solar flares for June 4, 2025
The total number of solar flares of class C and higher — 5 flares
C class — 5 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.6 | 23:35 | 23:41 | 23:44 | 4100 |
| C1.4 | 22:34 | 22:39 | 22:43 | 4100 |
| C1.0 | 22:24 | 22:29 | 22:33 | 4100 |
| C1.0 | 22:08 | 22:15 | 22:24 | 4100 |
| C1.2 | 14:04 | 14:10 | 14:14 | 4100 |