Solar flares on April 15, 2011
The most powerful solar flare in 24 hours
M1.3 (strong) flare - April 15 at 6:12 PM
Solar activity index
Value as of the end of the day on April 15, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 14, 2011 to April 15, 2011
Time zone — UTC+01 (London) — summer time
List of solar flares for April 15, 2011
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 |
|---|---|---|---|---|
| C1.8 | 23:33 | 23:36 | 23:39 | 1190 |
| M1.3 | 18:02 | 18:12 | 18:28 | 1190 |
| C1.6 | 17:08 | 17:14 | 17:19 | 1190 |
| C2.0 | 15:42 | 15:49 | 15:57 | 1190 |
| C2.8 | 14:47 | 14:50 | 14:54 | 1190 |
| C1.9 | 12:29 | 12:36 | 12:48 | 1193 |
| C1.6 | 10:10 | 10:36 | 10:49 | 1190 |
| C1.1 | 09:09 | 09:11 | 09:12 | — |
| C1.3 | 05:37 | 05:41 | 05:44 | 1190 |
| C1.8 | 04:43 | 04:55 | 05:00 | 1190 |