Solar flares on April 18, 2023
The most powerful solar flare in 24 hours
C4.8 (normal) flare - April 18 at 11:29 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-04 (Kitchener) — summer time
List of solar flares for April 18, 2023
The total number of solar flares of class C and higher — 8 flares
C class — 8 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.9 | 18:45 | 18:56 | 19:17 | — |
| C1.9 | 15:07 | 15:17 | 15:24 | — |
| C3.2 | 14:00 | 14:13 | 14:27 | 3283 |
| C4.8 | 11:21 | 11:29 | 11:36 | 3280 |
| C2.4 | 10:27 | 10:35 | 10:54 | 3280 |
| C1.9 | 05:27 | 05:33 | 05:37 | 3280 |
| C2.4 | 01:24 | 01:30 | 01:34 | 3280 |
| C1.5 | 23:56 | 00:03 | 00:07 | 3280 |