Solar flares on March 18, 2000
The most powerful solar flare in 24 hours
M3.9 (strong) flare - March 18 at 3:57 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-08 (Anchorage) — summer time
List of solar flares for March 18, 2000
The total number of solar flares of class C and higher — 7 flares
C class — 4 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C5.5 | 17:56 | 18:02 | 18:10 | — |
| M3.9 | 15:53 | 15:57 | 16:19 | 8906 |
| M2.6 | 15:13 | 15:33 | 15:53 | 8910 |
| C4.5 | 13:50 | 13:54 | 14:21 | 8909 |
| M2.1 | 12:47 | 13:02 | 13:16 | — |
| C3.0 | 01:18 | 01:33 | 01:43 | — |
| C2.7 | 00:43 | 00:53 | 01:08 | — |