Solar flares on August 18, 2012
The most powerful solar flare in 24 hours
M2.0 (strong) flare - August 18 at 7:07 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-09 (Honolulu) — summer time
List of solar flares for August 18, 2012
The total number of solar flares of class C and higher — 16 flares
C class — 13 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.3 | 20:39 | 20:44 | 20:47 | 1548 |
| C2.2 | 19:03 | 19:23 | 19:40 | 1548 |
| C1.9 | 17:31 | 17:41 | 17:48 | — |
| M1.3 | 14:15 | 14:22 | 14:32 | 1548 |
| M1.0 | 13:46 | 13:54 | 14:00 | 1548 |
| C1.1 | 12:20 | 12:27 | 12:33 | 1548 |
| C2.5 | 10:06 | 10:13 | 10:19 | 1548 |
| M2.0 | 07:02 | 07:07 | 07:09 | 1548 |
| C1.3 | 05:58 | 06:07 | 06:18 | 1548 |
| C7.3 | 05:18 | 05:27 | 05:30 | 1548 |
| C2.1 | 04:29 | 04:38 | 04:42 | 1548 |
| C1.0 | 03:23 | 03:26 | 03:28 | — |
| C2.4 | 02:49 | 02:53 | 02:55 | — |
| C1.3 | 02:41 | 02:45 | 02:47 | 1548 |
| C1.9 | 01:32 | 01:37 | 01:39 | 1548 |
| C1.0 | 00:46 | 00:53 | 01:08 | 1548 |