Solar flares on August 4, 2011
The most powerful solar flare in 24 hours
M9.3 (strong) flare - August 4 at 6:57 AM
Solar activity index
Value as of the end of the day on August 4, 2011
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 3, 2011 to August 4, 2011
Time zone — UTC+03 (Riga)
List of solar flares for August 4, 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 | 17:32 | 17:38 | 17:44 | 1263 |
| C1.0 | 17:09 | 17:17 | 17:26 | 1261 |
| C2.1 | 16:04 | 16:07 | 16:12 | 1263 |
| C1.2 | 14:43 | 14:49 | 14:56 | 1261 |
| C1.6 | 13:06 | 13:12 | 13:19 | 1261 |
| C2.5 | 12:15 | 12:20 | 12:23 | 1261 |
| C3.5 | 10:56 | 11:02 | 11:06 | 1261 |
| M9.3 | 06:41 | 06:57 | 07:04 | 1261 |
| C3.2 | 05:14 | 05:23 | 05:28 | 1261 |
| C1.7 | 03:47 | 04:09 | 04:23 | 1261 |