Solar flares on October 30, 2025
The most powerful solar flare in 24 hours
C1.8 (normal) flare - October 30 at 10:01 PM
Solar activity index
Value as of the end of the day on October 30, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 29, 2025 to October 30, 2025
Time zone — UTC-04 (Providence) — summer time
List of solar flares for October 30, 2025
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.8 | 21:44 | 22:01 | 22:30 | — |
| C1.4 | 08:05 | 08:37 | 09:29 | — |