Solar flares on June 18, 2001
The most powerful solar flare in 24 hours
M2.0 (strong) flare - June 18 at 9:21 PM
Solar activity index
Value as of the end of the day on June 18, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 17, 2001 to June 18, 2001
Time zone — UTC+01 (London) — summer time
List of solar flares for June 18, 2001
The total number of solar flares of class C and higher — 6 flares
C class — 5 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M2.0 | 20:59 | 21:21 | 21:50 | 9506 |
| C4.2 | 15:51 | 15:55 | 15:57 | 9503 |
| C2.3 | 13:54 | 14:04 | 14:34 | 9506 |
| C1.8 | 12:20 | 12:25 | 12:35 | — |
| C2.8 | 07:11 | 07:19 | 07:41 | 9500 |
| C1.6 | 02:57 | 03:30 | 04:33 | 9506 |