Solar flares on April 18, 2000
The most powerful solar flare in 24 hours
C7.8 (normal) flare - April 18 at 6:05 PM
Solar activity index
Value as of the end of the day on April 18, 2000
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 17, 2000 to April 18, 2000
Time zone — UTC+10 (Sydney)
List of solar flares for April 18, 2000
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 |
|---|---|---|---|---|
| C1.8 | 23:20 | 23:30 | 23:35 | — |
| C1.0 | 22:45 | 22:48 | 22:59 | — |
| C4.0 | 21:47 | 21:53 | 21:58 | 8963 |
| C7.8 | 17:58 | 18:05 | 18:08 | 8963 |
| C1.9 | 15:59 | 16:09 | 16:19 | — |
| C1.0 | 07:10 | 07:16 | 07:24 | — |
| C3.7 | 03:26 | 03:34 | 03:39 | 8955 |