Solar flares on August 15, 2025
The most powerful solar flare in 24 hours
C7.7 (normal) flare - August 15 at 11:22 PM
Solar activity index
Value as of the end of the day on August 15, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 14, 2025 to August 15, 2025
Time zone — UTC+02 (Prague) — summer time
List of solar flares for August 15, 2025
The total number of solar flares of class C and higher — 12 flares
C class — 12 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.7 | 23:11 | 23:22 | 23:26 | 4172 |
| C1.1 | 22:40 | 22:46 | 22:53 | 4178 |
| C1.0 | 21:50 | 21:54 | 21:56 | 4179 |
| C1.6 | 20:43 | 20:57 | 21:22 | 4172 |
| C2.1 | 14:37 | 14:45 | 14:48 | 4172 |
| C2.2 | 13:35 | 13:45 | 13:49 | 4172 |
| C6.8 | 12:21 | 12:37 | 12:50 | 4172 |
| C1.8 | 11:31 | 11:41 | 11:47 | 4172 |
| C1.6 | 10:52 | 11:01 | 11:14 | 4172 |
| C1.2 | 08:12 | 08:16 | 08:18 | 4172 |
| C1.3 | 08:01 | 08:06 | 08:12 | 4172 |
| C1.3 | 04:56 | 05:06 | 05:24 | 4180 |