Solar flares on October 19, 2001
The most powerful solar flare in 24 hours
X1.6 (very strong) flare - October 19 at 8:30 AM
Solar activity index
Value as of the end of the day on October 19, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 18, 2001 to October 19, 2001
Time zone — UTC-08 (Dillingham) — summer time
List of solar flares for October 19, 2001
The total number of solar flares of class C and higher — 11 flares
C class — 8 | M class — 2 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.1 | 23:00 | 23:09 | 23:25 | 9670 |
| C7.3 | 16:11 | 16:28 | 16:42 | — |
| M3.3 | 15:14 | 15:25 | 15:33 | 9658 |
| C3.9 | 13:36 | 14:02 | 14:09 | 9658 |
| C4.1 | 12:58 | 13:03 | 13:08 | 9658 |
| X1.6 | 08:13 | 08:30 | 08:43 | 9661 |
| C3.2 | 07:45 | 07:48 | 07:51 | 9671 |
| C3.5 | 06:36 | 06:53 | 07:06 | — |
| C3.8 | 05:36 | 05:40 | 05:44 | 9658 |
| C7.8 | 04:19 | 04:33 | 04:42 | 9672 |
| M5.7 | 01:35 | 01:43 | 01:55 | 9658 |