Solar flares on April 21, 2014
The most powerful solar flare in 24 hours
C5.1 (normal) flare - April 21 at 11:02 AM
Solar activity index
Value as of the end of the day on April 21, 2014
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 20, 2014 to April 21, 2014
Time zone — UTC-09 (Honolulu) — summer time
List of solar flares for April 21, 2014
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 |
|---|---|---|---|---|
| C3.8 | 23:44 | 23:49 | 23:54 | 2038 |
| C2.9 | 22:57 | 23:03 | 23:12 | 2035 |
| C3.6 | 20:25 | 20:47 | 21:06 | 2038 |
| C2.0 | 18:42 | 19:20 | 19:34 | 2035 |
| C1.7 | 15:34 | 16:03 | 16:18 | 2035 |
| C2.3 | 14:20 | 14:31 | 14:40 | 2035 |
| C3.0 | 13:09 | 13:29 | 13:46 | 2038 |
| C5.1 | 10:30 | 11:02 | 11:26 | 2038 |
| C1.1 | 04:26 | 04:29 | 04:37 | 2038 |
| C2.0 | 00:13 | 00:35 | 01:20 | 2038 |