Solar flares on October 25, 2025
The most powerful solar flare in 24 hours
C2.2 (normal) flare - October 25 at 3:10 PM
Solar activity index
Value as of the end of the day on October 25, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 24, 2025 to October 25, 2025
Time zone — UTC-08 (Anchorage) — summer time
List of solar flares for October 25, 2025
The total number of solar flares of class C and higher — 5 flares
C class — 5 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 17:24 | 17:34 | 17:42 | 4256 |
| C1.2 | 16:04 | 16:13 | 16:18 | 4256 |
| C2.2 | 14:58 | 15:10 | 15:15 | 4267 |
| C1.3 | 03:01 | 03:12 | 03:28 | 4256 |
| C1.6 | 02:13 | 02:23 | 02:30 | 4267 |