Solar flares on June 16, 2025
The most powerful solar flare in 24 hours
M6.3 (strong) flare - June 16 at 4:38 AM
Solar activity index
Value as of the end of the day on June 16, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 15, 2025 to June 16, 2025
Time zone — UTC-05 (Pierre) — summer time
List of solar flares for June 16, 2025
The total number of solar flares of class C and higher — 9 flares
C class — 6 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C6.8 | 20:15 | 20:26 | 20:33 | 4114 |
| C4.1 | 19:49 | 19:53 | 19:56 | 4113 |
| C4.5 | 18:02 | 18:09 | 18:12 | 4114 |
| C3.1 | 12:04 | 12:12 | 12:21 | — |
| M1.1 | 09:43 | 09:55 | 10:03 | — |
| M1.4 | 06:27 | 06:39 | 06:43 | — |
| M6.3 | 04:17 | 04:38 | 04:48 | 4114 |
| C3.8 | 03:12 | 03:22 | 03:30 | 4107 |
| C5.0 | 01:25 | 01:39 | 01:45 | 4109 |