Solar flares on October 31, 2004
The most powerful solar flare in 24 hours
C7.0 (normal) flare - October 31 at 9:27 PM
Solar activity index
Value as of the end of the day on October 31, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 30, 2004 to October 31, 2004
Time zone — UTC+00
List of solar flares for October 31, 2004
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.0 | 21:08 | 21:27 | 21:38 | 691 |
| C1.5 | 19:55 | 19:59 | 20:01 | 691 |