Solar flares on February 21, 2025
The most powerful solar flare in 24 hours
M3.3 (strong) flare - February 21 at 6:15 AM
Solar activity index
Value as of the end of the day on February 21, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 20, 2025 to February 21, 2025
Time zone — UTC-06 (Chicago)
List of solar flares for February 21, 2025
The total number of solar flares of class C and higher — 12 flares
C class — 10 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.4 | 21:17 | 21:21 | 21:25 | 4000 |
| C8.1 | 20:43 | 21:06 | 21:17 | 4001 |
| C3.2 | 19:42 | 19:48 | 19:53 | 3990 |
| C3.1 | 18:15 | 18:22 | 18:27 | 4000 |
| C4.8 | 16:39 | 16:48 | 16:53 | 4000 |
| C3.9 | 13:42 | 13:53 | 14:02 | 3998 |
| C3.6 | 12:50 | 12:59 | 13:05 | 3990 |
| C7.6 | 09:52 | 09:59 | 10:03 | 3996 |
| M1.4 | 08:31 | 08:35 | 08:39 | 4000 |
| M3.3 | 06:05 | 06:15 | 06:19 | 4000 |
| C5.8 | 05:12 | 05:19 | 05:25 | 3990 |
| C4.4 | 01:56 | 02:10 | 02:24 | 3998 |