Solar flares on August 15, 2025
The most powerful solar flare in 24 hours
C7.7 (normal) flare - August 15 at 9:22 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+00
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 | 21:11 | 21:22 | 21:26 | 4172 |
| C1.1 | 20:40 | 20:46 | 20:53 | 4178 |
| C1.0 | 19:50 | 19:54 | 19:56 | 4179 |
| C1.6 | 18:43 | 18:57 | 19:22 | 4172 |
| C2.1 | 12:37 | 12:45 | 12:48 | 4172 |
| C2.2 | 11:35 | 11:45 | 11:49 | 4172 |
| C6.8 | 10:21 | 10:37 | 10:50 | 4172 |
| C1.8 | 09:31 | 09:41 | 09:47 | 4172 |
| C1.6 | 08:52 | 09:01 | 09:14 | 4172 |
| C1.2 | 06:12 | 06:16 | 06:18 | 4172 |
| C1.3 | 06:01 | 06:06 | 06:12 | 4172 |
| C1.3 | 02:56 | 03:06 | 03:24 | 4180 |