Solar flares on August 12, 2025
The most powerful solar flare in 24 hours
C8.3 (normal) flare - August 12 at 2:43 PM
Solar activity index
Value as of the end of the day on August 12, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 11, 2025 to August 12, 2025
Time zone — UTC-04 (Lansing) — summer time
List of solar flares for August 12, 2025
The total number of solar flares of class C and higher — 14 flares
C class — 14 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.3 | 23:23 | 23:30 | 23:32 | 4178 |
| C2.9 | 21:29 | 21:42 | 21:44 | 4178 |
| C2.4 | 18:49 | 18:53 | 18:56 | — |
| C2.1 | 17:32 | 17:35 | 17:37 | 4178 |
| C8.3 | 14:09 | 14:43 | 15:09 | 4172 |
| C4.0 | 12:13 | 12:24 | 12:37 | 4172 |
| C5.0 | 08:51 | 08:55 | 08:58 | 4172 |
| C6.1 | 08:03 | 08:18 | 08:39 | — |
| C7.7 | 07:47 | 07:53 | 07:55 | — |
| C4.3 | 02:32 | 02:41 | 02:54 | — |
| C3.7 | 01:00 | 01:11 | 01:22 | — |
| C5.8 | 00:23 | 00:29 | 00:33 | — |
| C5.1 | 00:13 | 00:20 | 00:23 | — |
| C3.3 | 23:58 | 00:05 | 00:13 | — |