Solar flares on October 4, 2025
The most powerful solar flare in 24 hours
C5.5 (normal) flare - October 4 at 7:12 AM
Solar activity index
Value as of the end of the day on October 4, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 3, 2025 to October 4, 2025
Time zone — UTC+05:30 (Secunderabad)
List of solar flares for October 4, 2025
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.5 | 23:15 | 23:22 | 23:26 | 4241 |
| C3.5 | 10:25 | 10:32 | 10:39 | 4232 |
| C3.2 | 09:37 | 09:44 | 09:46 | 4242 |
| C4.7 | 08:40 | 08:52 | 09:01 | 4236 |
| C5.5 | 07:06 | 07:12 | 07:17 | 4242 |
| C2.7 | 06:19 | 06:24 | 06:28 | 4242 |
| C3.4 | 05:55 | 06:05 | 06:11 | 4242 |
| C3.0 | 02:35 | 02:44 | 02:50 | 4242 |