Solar flares on June 20, 2025
The most powerful solar flare in 24 hours
M1.0 (strong) flare - June 20 at 11:40 AM
Solar activity index
Value as of the end of the day on June 20, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 19, 2025 to June 20, 2025
Time zone — UTC-06 (El Paso) — summer time
List of solar flares for June 20, 2025
The total number of solar flares of class C and higher — 6 flares
C class — 5 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.0 | 19:00 | 19:05 | 19:07 | 4114 |
| C2.2 | 12:38 | 12:48 | 12:51 | — |
| M1.0 | 11:21 | 11:40 | 11:59 | 4117 |
| C3.6 | 09:01 | 09:04 | 09:06 | 4114 |
| C1.1 | 06:58 | 07:05 | 07:08 | — |
| C1.1 | 02:56 | 03:03 | 03:10 | — |