Solar flares on October 18, 2013
The most powerful solar flare in 24 hours
C8.4 (normal) flare - October 18 at 3:26 PM
Solar activity index
Value as of the end of the day on October 18, 2013
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 17, 2013 to October 18, 2013
Time zone — UTC+00
List of solar flares for October 18, 2013
The total number of solar flares of class C and higher — 9 flares
C class — 9 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C8.4 | 15:15 | 15:26 | 15:39 | 1861 |
| C4.7 | 10:51 | 10:54 | 10:56 | 1875 |
| C5.0 | 10:17 | 10:34 | 10:48 | 1861 |
| C2.2 | 08:16 | 08:21 | 08:24 | 1875 |
| C3.3 | 07:24 | 07:29 | 07:31 | 1875 |
| C5.3 | 05:00 | 05:08 | 05:12 | 1875 |
| C1.5 | 03:24 | 03:27 | 03:30 | 1861 |
| C3.3 | 03:02 | 03:07 | 03:10 | — |
| C2.7 | 00:56 | 01:01 | 01:04 | 1875 |