Solar flares on March 18, 2000
The most powerful solar flare in 24 hours
M3.9 (strong) flare - March 18 at 7:57 PM
Solar activity index
Value as of the end of the day on March 18, 2000
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from March 17, 2000 to March 18, 2000
Time zone — UTC-04 (Quebec) — summer time
List of solar flares for March 18, 2000
The total number of solar flares of class C and higher — 8 flares
C class — 5 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C5.5 | 21:56 | 22:02 | 22:10 | — |
| M3.9 | 19:53 | 19:57 | 20:19 | 8906 |
| M2.6 | 19:13 | 19:33 | 19:53 | 8910 |
| C4.5 | 17:50 | 17:54 | 18:21 | 8909 |
| M2.1 | 16:47 | 17:02 | 17:16 | — |
| C3.0 | 05:18 | 05:33 | 05:43 | — |
| C2.7 | 04:43 | 04:53 | 05:08 | — |
| C3.1 | 23:52 | 00:06 | 00:12 | — |