Solar flares on July 30, 2025
The most powerful solar flare in 24 hours
C4.7 (normal) flare - July 30 at 2:16 AM
Solar activity index
Value as of the end of the day on July 30, 2025
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 29, 2025 to July 30, 2025
Time zone — UTC-04 (Providence) — summer time
List of solar flares for July 30, 2025
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 22:36 | 22:42 | 22:46 | 4154 |
| C2.1 | 15:52 | 15:58 | 16:01 | — |
| C2.1 | 15:23 | 15:43 | 15:52 | 4161 |
| C1.3 | 13:28 | 13:36 | 13:41 | 4165 |
| C2.2 | 07:20 | 07:29 | 07:38 | 4155 |
| C3.4 | 06:25 | 06:32 | 06:34 | 4155 |
| C1.5 | 04:21 | 04:28 | 04:38 | — |
| C4.7 | 01:57 | 02:16 | 02:18 | 4155 |
| C1.6 | 01:17 | 01:24 | 01:26 | 4155 |