Solar flares on April 18, 2000
The most powerful solar flare in 24 hours
C7.8 (normal) flare - April 18 at 1:05 AM
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-07 (Phoenix)
List of solar flares for April 18, 2000
The total number of solar flares of class C and higher — 10 flares
C class — 10 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.0 | 23:31 | 23:34 | 23:40 | — |
| C4.6 | 22:53 | 23:04 | 23:11 | 8963 |
| C4.3 | 22:42 | 22:47 | 22:51 | 8963 |
| C5.9 | 20:30 | 20:55 | 21:28 | 8967 |
| C1.2 | 19:00 | 19:04 | 19:09 | — |
| C4.2 | 07:08 | 07:15 | 07:22 | 8963 |
| C1.8 | 06:20 | 06:30 | 06:35 | — |
| C1.0 | 05:45 | 05:48 | 05:59 | — |
| C4.0 | 04:47 | 04:53 | 04:58 | 8963 |
| C7.8 | 00:58 | 01:05 | 01:08 | 8963 |