Solar flares on June 4, 2025
The most powerful solar flare in 24 hours
M1.1 (strong) flare - June 4 at 7:28 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-04 (Hamilton (Canada)) — summer time
List of solar flares for June 4, 2025
The total number of solar flares of class C and higher — 8 flares
C class — 7 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.3 | 22:24 | 22:29 | 22:34 | 4100 |
| C1.2 | 22:15 | 22:22 | 22:24 | 4100 |
| M1.1 | 19:06 | 19:28 | 19:39 | 4100 |
| C1.6 | 18:35 | 18:41 | 18:44 | 4100 |
| C1.4 | 17:34 | 17:39 | 17:43 | 4100 |
| C1.0 | 17:24 | 17:29 | 17:33 | 4100 |
| C1.0 | 17:08 | 17:15 | 17:24 | 4100 |
| C1.2 | 09:04 | 09:10 | 09:14 | 4100 |