Solar flares on August 18, 2012
The most powerful solar flare in 24 hours
M5.5 (strong) flare - August 18 at 4:02 AM
Solar activity index
Value as of the end of the day on August 18, 2012
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 17, 2012 to August 18, 2012
Time zone — UTC+03 (Riga)
List of solar flares for August 18, 2012
The total number of solar flares of class C and higher — 15 flares
C class — 12 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.5 | 22:06 | 22:13 | 22:19 | 1548 |
| M2.0 | 19:02 | 19:07 | 19:09 | 1548 |
| C1.3 | 17:58 | 18:07 | 18:18 | 1548 |
| C7.3 | 17:18 | 17:27 | 17:30 | 1548 |
| C2.1 | 16:29 | 16:38 | 16:42 | 1548 |
| C1.0 | 15:23 | 15:26 | 15:28 | — |
| C2.4 | 14:49 | 14:53 | 14:55 | — |
| C1.3 | 14:41 | 14:45 | 14:47 | 1548 |
| C1.9 | 13:32 | 13:37 | 13:39 | 1548 |
| C1.0 | 12:46 | 12:53 | 13:08 | 1548 |
| C1.9 | 11:50 | 11:58 | 12:04 | — |
| C2.6 | 11:30 | 11:37 | 11:40 | 1548 |
| C6.1 | 09:09 | 09:18 | 09:31 | 1548 |
| M1.8 | 06:17 | 06:23 | 06:30 | 1548 |
| M5.5 | 03:24 | 04:02 | 04:07 | 1548 |