Solar flares on August 21, 2014
The most powerful solar flare in 24 hours
M3.4 (strong) flare - August 21 at 9:31 AM
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-04 (Washington) — summer time
List of solar flares for August 21, 2014
The total number of solar flares of class C and higher — 11 flares
C class — 10 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.1 | 22:20 | 22:26 | 22:35 | 2149 |
| C2.5 | 21:56 | 22:01 | 22:05 | 2149 |
| C2.6 | 20:48 | 20:54 | 21:01 | 2149 |
| C6.6 | 19:54 | 20:06 | 20:10 | 2148 |
| C1.2 | 18:17 | 18:39 | 18:57 | — |
| C7.3 | 14:56 | 15:04 | 15:20 | 2149 |
| C2.0 | 11:45 | 11:50 | 11:55 | — |
| M3.4 | 09:19 | 09:31 | 09:42 | 2149 |
| C1.2 | 07:55 | 07:59 | 08:03 | — |
| C1.2 | 05:57 | 06:18 | 06:36 | — |
| C1.7 | 23:12 | 00:06 | 00:20 | 2148 |