Solar flares on August 11, 2025
The most powerful solar flare in 24 hours
M1.6 (strong) flare - August 11 at 3:36 PM
Solar activity index
Value as of the end of the day on August 11, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 10, 2025 to August 11, 2025
Time zone — UTC+00
List of solar flares for August 11, 2025
The total number of solar flares of class C and higher — 17 flares
C class — 14 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.5 | 23:48 | 23:56 | 00:00 | — |
| C3.9 | 21:28 | 21:35 | 21:43 | — |
| C5.5 | 20:17 | 20:26 | 20:41 | — |
| M1.6 | 15:18 | 15:36 | 15:51 | 4168 |
| M1.5 | 14:20 | 14:35 | 14:57 | 4168 |
| C5.9 | 13:49 | 13:56 | 14:00 | 4168 |
| C3.2 | 13:40 | 13:46 | 13:49 | 4168 |
| C7.2 | 12:24 | 12:39 | 12:57 | 4168 |
| C7.9 | 11:38 | 11:45 | 11:47 | 4174 |
| C7.6 | 10:51 | 10:54 | 10:56 | 4168 |
| C6.1 | 10:25 | 10:37 | 10:51 | 4168 |
| C6.1 | 09:02 | 09:11 | 09:14 | 4173 |
| C8.9 | 08:34 | 08:43 | 09:02 | 4168 |
| C7.5 | 06:01 | 06:10 | 06:15 | 4173 |
| C7.3 | 05:26 | 05:35 | 05:45 | 4168 |
| M1.3 | 03:42 | 03:52 | 03:59 | 4173 |
| C9.9 | 03:01 | 03:05 | 03:08 | 4168 |