Solar flares on October 12, 2025
The most powerful solar flare in 24 hours
C9.6 (normal) flare - October 12 at 1:50 PM
Solar activity index
Value as of the end of the day on October 12, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 11, 2025 to October 12, 2025
Time zone — UTC+00
List of solar flares for October 12, 2025
The total number of solar flares of class C and higher — 16 flares
C class — 16 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.5 | 23:23 | 23:31 | 23:40 | 4246 |
| C4.4 | 21:18 | 21:37 | 21:51 | 4246 |
| C2.4 | 20:50 | 21:02 | 21:10 | 4246 |
| C2.4 | 19:56 | 20:01 | 20:04 | 4246 |
| C2.3 | 19:43 | 19:52 | 19:56 | 4246 |
| C2.0 | 19:33 | 19:39 | 19:43 | 4250 |
| C2.7 | 17:31 | 17:39 | 17:45 | 4246 |
| C3.3 | 15:14 | 15:22 | 15:28 | 4246 |
| C9.6 | 13:18 | 13:50 | 14:26 | 4246 |
| C1.7 | 12:42 | 12:46 | 12:49 | 4246 |
| C1.9 | 12:30 | 12:36 | 12:42 | 4246 |
| C1.7 | 12:00 | 12:07 | 12:10 | 4241 |
| C1.9 | 11:12 | 11:22 | 11:32 | 4248 |
| C1.6 | 10:38 | 10:43 | 10:55 | 4246 |
| C1.0 | 06:27 | 06:30 | 06:35 | 4246 |
| C1.5 | 02:19 | 02:47 | 02:56 | 4246 |