Solar flares on October 18, 2013
The most powerful solar flare in 24 hours
C8.4 (normal) flare - October 18 at 5:26 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+02 (Madrid) — summer time
List of solar flares for October 18, 2013
The total number of solar flares of class C and higher — 10 flares
C class — 10 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C8.4 | 17:15 | 17:26 | 17:39 | 1861 |
| C4.7 | 12:51 | 12:54 | 12:56 | 1875 |
| C5.0 | 12:17 | 12:34 | 12:48 | 1861 |
| C2.2 | 10:16 | 10:21 | 10:24 | 1875 |
| C3.3 | 09:24 | 09:29 | 09:31 | 1875 |
| C5.3 | 07:00 | 07:08 | 07:12 | 1875 |
| C1.5 | 05:24 | 05:27 | 05:30 | 1861 |
| C3.3 | 05:02 | 05:07 | 05:10 | — |
| C2.7 | 02:56 | 03:01 | 03:04 | 1875 |
| C1.6 | 00:18 | 00:24 | 00:32 | — |