Solar flares on August 15, 2004
The most powerful solar flare in 24 hours
M9.4 (strong) flare - August 15 at 7:41 AM
Solar activity index
Value as of the end of the day on August 15, 2004
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 14, 2004 to August 15, 2004
Time zone — UTC-05 (Arviat) — summer time
List of solar flares for August 15, 2004
The total number of solar flares of class C and higher — 14 flares
C class — 8 | M class — 6 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.1 | 22:31 | 22:47 | 23:15 | 656 |
| C2.8 | 21:58 | 22:05 | 22:14 | 656 |
| C2.3 | 18:55 | 19:13 | 19:22 | 656 |
| C2.1 | 17:55 | 18:00 | 18:02 | 656 |
| C4.9 | 15:37 | 15:46 | 15:54 | 656 |
| M1.2 | 13:37 | 13:45 | 13:50 | 656 |
| C1.6 | 12:59 | 13:03 | 13:12 | 656 |
| C1.4 | 12:16 | 12:21 | 12:26 | 656 |
| C2.9 | 11:42 | 11:50 | 11:56 | 656 |
| C1.7 | 09:18 | 09:24 | 09:32 | 656 |
| M9.4 | 07:34 | 07:41 | 07:43 | 656 |
| M2.6 | 06:23 | 06:32 | 06:48 | 656 |
| M1.2 | 00:54 | 01:00 | 01:04 | 656 |
| M1.2 | 23:45 | 00:06 | 00:22 | 656 |