Solar flares on August 15, 2025
The most powerful solar flare in 24 hours
C7.7 (normal) flare - August 15 at 5:22 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-04 (Columbus) — summer time
List of solar flares for August 15, 2025
The total number of solar flares of class C and higher — 11 flares
C class — 11 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.7 | 17:11 | 17:22 | 17:26 | 4172 |
| C1.1 | 16:40 | 16:46 | 16:53 | 4178 |
| C1.0 | 15:50 | 15:54 | 15:56 | 4179 |
| C1.6 | 14:43 | 14:57 | 15:22 | 4172 |
| C2.1 | 08:37 | 08:45 | 08:48 | 4172 |
| C2.2 | 07:35 | 07:45 | 07:49 | 4172 |
| C6.8 | 06:21 | 06:37 | 06:50 | 4172 |
| C1.8 | 05:31 | 05:41 | 05:47 | 4172 |
| C1.6 | 04:52 | 05:01 | 05:14 | 4172 |
| C1.2 | 02:12 | 02:16 | 02:18 | 4172 |
| C1.3 | 02:01 | 02:06 | 02:12 | 4172 |