Solar flares on August 18, 2002
The most powerful solar flare in 24 hours
M2.3 (strong) flare - August 18 at 12:05 PM
Solar activity index
Value as of the end of the day on August 18, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from August 17, 2002 to August 18, 2002
Time zone — UTC+02 (Bern) — summer time
List of solar flares for August 18, 2002
The total number of solar flares of class C and higher — 14 flares
C class — 11 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M2.2 | 23:12 | 23:25 | 23:37 | 69 |
| C8.7 | 22:18 | 22:24 | 22:29 | 69 |
| C4.5 | 21:35 | 21:56 | 22:18 | 79 |
| C6.0 | 18:42 | 18:50 | 18:55 | 83 |
| M1.9 | 16:33 | 16:39 | 16:43 | 69 |
| C4.9 | 15:43 | 15:50 | 15:54 | 69 |
| C4.1 | 14:05 | 14:09 | 14:13 | — |
| M2.3 | 11:54 | 12:05 | 12:09 | 69 |
| C3.0 | 11:21 | 11:27 | 11:39 | 66 |
| C8.0 | 09:28 | 09:36 | 09:44 | 69 |
| C4.5 | 07:46 | 07:58 | 08:11 | 79 |
| C8.4 | 05:28 | 05:34 | 05:37 | 69 |
| C3.2 | 03:43 | 03:49 | 03:57 | 69 |
| C3.3 | 02:03 | 02:08 | 02:11 | 69 |