Solar flares on August 21, 2014
The most powerful solar flare in 24 hours
M3.4 (strong) flare - August 21 at 2:31 PM
Solar activity index
Value as of the end of the day on August 21, 2014
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 20, 2014 to August 21, 2014
Time zone — UTC+01 (London) — summer time
List of solar flares for August 21, 2014
The total number of solar flares of class C and higher — 10 flares
C class — 9 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.2 | 23:17 | 23:39 | 23:57 | — |
| C7.3 | 19:56 | 20:04 | 20:20 | 2149 |
| C2.0 | 16:45 | 16:50 | 16:55 | — |
| M3.4 | 14:19 | 14:31 | 14:42 | 2149 |
| C1.2 | 12:55 | 12:59 | 13:03 | — |
| C1.2 | 10:57 | 11:18 | 11:36 | — |
| C1.7 | 04:12 | 05:06 | 05:20 | 2148 |
| C3.2 | 02:12 | 02:37 | 03:00 | — |
| C3.2 | 01:26 | 01:46 | 02:05 | — |
| C1.1 | 00:22 | 00:31 | 00:38 | — |