Solar flares on August 23, 2025
The most powerful solar flare in 24 hours
M1.9 (strong) flare - August 23 at 8:06 PM
Solar activity index
Value as of the end of the day on August 23, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 22, 2025 to August 23, 2025
Time zone — UTC+00 (Reykjavik)
List of solar flares for August 23, 2025
The total number of solar flares of class C and higher — 10 flares
C class — 9 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C6.2 | 23:04 | 23:19 | 23:27 | — |
| C5.5 | 22:41 | 22:56 | 23:04 | — |
| M1.9 | 19:53 | 20:06 | 20:16 | — |
| C9.1 | 19:01 | 19:22 | 19:40 | 4191 |
| C2.6 | 15:12 | 15:16 | 15:19 | — |
| C3.0 | 14:48 | 14:54 | 15:01 | — |
| C3.2 | 13:19 | 13:32 | 13:50 | 4191 |
| C1.9 | 12:47 | 12:52 | 12:56 | 4191 |
| C2.3 | 11:29 | 11:35 | 11:40 | — |
| C2.8 | 06:23 | 06:29 | 06:34 | 4191 |