Solar flares on April 18, 2001
The most powerful solar flare in 24 hours
M1.3 (strong) flare - April 18 at 1:57 AM
Solar activity index
Value as of the end of the day on April 18, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 17, 2001 to April 18, 2001
Time zone — UTC+04 (Tbilisi)
List of solar flares for April 18, 2001
The total number of solar flares of class C and higher — 4 flares
C class — 3 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.2 | 22:13 | 22:21 | 22:27 | — |
| C1.9 | 10:04 | 10:11 | 10:16 | — |
| C2.2 | 06:11 | 06:14 | 06:16 | — |
| M1.3 | 01:18 | 01:57 | 02:16 | — |