Solar flares on September 25, 2001
The most powerful solar flare in 24 hours
M7.6 (strong) flare - September 25 at 12:40 AM
Solar activity index
Value as of the end of the day on September 25, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 24, 2001 to September 25, 2001
Time zone — UTC-04 (Lansing) — summer time
List of solar flares for September 25, 2001
The total number of solar flares of class C and higher — 6 flares
C class — 3 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.8 | 22:52 | 22:58 | 23:03 | — |
| C4.2 | 16:24 | 16:27 | 16:29 | 9628 |
| C2.5 | 14:43 | 14:53 | 15:06 | 9628 |
| C7.0 | 13:11 | 13:17 | 13:22 | 9628 |
| M2.0 | 06:18 | 06:27 | 06:31 | 9628 |
| M7.6 | 00:24 | 00:40 | 00:52 | 9628 |