Solar Flare WatchHome › Flare history › 2004
M7.1 solar flare on 2004-07-25
ClassM7.1NOAA report
Peak05:512004-07-25 UTC
Duration19 min
Peak flux7.1e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 20 / 1046 |
| Other M/X flares that day | 3 |
| M/X flares that month | 39 |
| Solar cycle | Cycle 23 |
| Position on disk | N10W30 |
| Active region | AR 10652 (81 flares) |
Compared with the strongest flares of 2004
X3.6
X2.5
X2.0
X1.8
X1.8
X1.6
X1.3
X1.2
X1.1
X1.1
X1.0
X1.0
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 06:30 | 06:39 | 15 | M1.0 | N05W26 | 10652 | |
| 13:37 | 13:49 | 18 | M2.2 | N04W30 | 10652 | |
| 14:19 | 15:14 | 144 | M1.1 | – | 10652 |
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.
← M9.1 2004-07-22X1.0 2004-08-13 →
About this page
A M7.1 flare that began 2004-07-25 05:39 UTC; No. 20 of 1,046 C-class-or-larger flares in 2004.