Solar flares on April 18, 2023
The most powerful solar flare in 24 hours
C4.8 (normal) flare - April 18 at 8:29 AM
Solar activity index
Value as of the end of the day on April 18, 2023
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 17, 2023 to April 18, 2023
Time zone — UTC-07 (Kamloops) — summer time
List of solar flares for April 18, 2023
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.3 | 21:20 | 21:30 | 21:38 | 3272 |
| C2.9 | 15:45 | 15:56 | 16:17 | — |
| C1.9 | 12:07 | 12:17 | 12:24 | — |
| C3.2 | 11:00 | 11:13 | 11:27 | 3283 |
| C4.8 | 08:21 | 08:29 | 08:36 | 3280 |
| C2.4 | 07:27 | 07:35 | 07:54 | 3280 |
| C1.9 | 02:27 | 02:33 | 02:37 | 3280 |