Solar flares on October 9, 2025
The most powerful solar flare in 24 hours
M2.0 (strong) flare - October 9 at 12:31 PM
Solar activity index
Value as of the end of the day on October 9, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 8, 2025 to October 9, 2025
Time zone — UTC+00
List of solar flares for October 9, 2025
The total number of solar flares of class C and higher — 4 flares
C class — 3 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.8 | 19:36 | 19:45 | 19:48 | 4249 |
| C1.3 | 18:33 | 18:48 | 19:02 | 4241 |
| M2.0 | 12:11 | 12:31 | 12:52 | 4236 |
| C1.7 | 05:09 | 05:17 | 05:22 | 4241 |