Solar flares on November 4, 2025
The most powerful solar flare in 24 hours
X1.8 (very strong) flare - November 4 at 11:34 AM
Solar activity index
Value as of the end of the day on November 4, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from November 3, 2025 to November 4, 2025
Time zone — UTC-06 (Springfield)
List of solar flares for November 4, 2025
The total number of solar flares of class C and higher — 16 flares
C class — 13 | M class — 1 | X class — 2
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.9 | 23:49 | 23:51 | 23:57 | 4274 |
| C9.9 | 22:53 | 23:05 | 23:11 | 4274 |
| C8.0 | 20:52 | 21:01 | 21:06 | 4274 |
| C6.2 | 19:47 | 19:55 | 20:01 | 4274 |
| C4.3 | 18:55 | 18:58 | 19:03 | 4274 |
| M1.7 | 16:33 | 16:44 | 16:56 | 4272 |
| X1.1 | 15:45 | 16:01 | 16:11 | 4276 |
| C9.3 | 14:09 | 14:19 | 14:26 | 4274 |
| X1.8 | 11:15 | 11:34 | 11:51 | 4274 |
| C2.0 | 08:16 | 08:21 | 08:27 | 4274 |
| C2.9 | 05:51 | 06:01 | 06:07 | 4274 |
| C2.4 | 05:41 | 05:48 | 05:51 | 4274 |
| C1.9 | 05:09 | 05:14 | 05:28 | 4273 |
| C4.6 | 04:02 | 04:13 | 04:17 | — |
| C2.6 | 02:54 | 03:02 | 03:05 | 4275 |
| C2.1 | 00:11 | 00:19 | 00:39 | — |