Solar flares on March 31, 2001
The most powerful solar flare in 24 hours
M2.1 (strong) flare - March 31 at 4:12 AM
Solar activity index
Value as of the end of the day on March 31, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from March 30, 2001 to March 31, 2001
Time zone — UTC-07 (Phoenix)
List of solar flares for March 31, 2001
The total number of solar flares of class C and higher — 4 flares
C class — 3 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.4 | 14:49 | 14:53 | 14:58 | 9401 |
| C3.9 | 12:49 | 12:53 | 12:59 | — |
| M2.1 | 04:00 | 04:12 | 04:31 | 9393 |
| C4.9 | 00:01 | 00:09 | 00:27 | 9404 |