Solar Flare WatchHome › Flare history › 2001
M7.6 solar flare on 2001-09-25
ClassM7.6NOAA report
Peak04:402001-09-25 UTC
Duration28 min
Peak flux7.6e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 33 / 2429 |
| Other M/X flares that day | 2 |
| M/X flares that month | 51 |
| Solar cycle | Cycle 23 |
| Position on disk | S18W01 |
| Active region | AR 9628 (29 flares) |
Compared with the strongest flares of 2001
X20.0
X14.4
X6.2
X5.6
X5.3
X3.4
X2.8
X2.6
X2.3
X2.0
X1.7
X1.6
Other M/X flares that day
All times UTC. Until June 2017 classes are NOAA's reports of the time (GOES-15 and earlier included a 0.7 scaling factor); later classes come from calibrated GOES-16/18 data, so the same flare reads about 1.4× larger. Do not compare the two periods directly.
← X2.6 2001-09-24M9.1 2001-10-01 →
About this page
A M7.6 flare that began 2001-09-25 04:24 UTC; No. 33 of 2,429 C-class-or-larger flares in 2001.