Solar flares on September 7, 2025
The most powerful solar flare in 24 hours
C4.0 (normal) flare - September 7 at 12:13 PM
Solar activity index
Value as of the end of the day on September 7, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 6, 2025 to September 7, 2025
Time zone — UTC-06 (Hay River) — summer time
List of solar flares for September 7, 2025
The total number of solar flares of class C and higher — 13 flares
C class — 13 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.0 | 22:33 | 22:47 | 23:24 | 4211 |
| C1.2 | 21:27 | 21:56 | 22:21 | 4212 |
| C1.2 | 20:16 | 20:49 | 21:06 | 4212 |
| C1.2 | 14:43 | 14:50 | 14:56 | 4207 |
| C4.0 | 11:56 | 12:13 | 12:45 | 4213 |
| C2.5 | 09:38 | 10:01 | 10:35 | 4213 |
| C1.4 | 08:28 | 09:01 | 09:29 | 4212 |
| C3.6 | 06:33 | 06:44 | 06:51 | 4207 |
| C3.4 | 04:39 | 04:50 | 05:15 | 4202 |
| C3.6 | 04:07 | 04:12 | 04:17 | 4207 |
| C2.7 | 03:25 | 03:40 | 04:04 | 4202 |
| C3.3 | 01:49 | 01:57 | 02:05 | 4207 |
| C3.6 | 00:43 | 00:55 | 01:20 | 4202 |