Solar Flare WatchHome › Flare history › 2004
M7.4 solar flare on 2004-08-14
ClassM7.4NOAA report
Peak05:442004-08-14 UTC
Duration16 min
Peak flux7.4e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 19 / 1046 |
| Other M/X flares that day | 6 |
| M/X flares that month | 28 |
| Solar cycle | Cycle 23 |
| Position on disk | S13W29 |
| Active region | AR 10656 (125 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 |
|---|---|---|---|---|---|---|
| 04:10 | 04:14 | 7 | M2.4 | S13W29 | 10656 | |
| 07:51 | 07:56 | 8 | M2.3 | S14W31 | 10656 | |
| 09:52 | 10:07 | 25 | M3.2 | S13W32 | 10656 | |
| 13:31 | 13:43 | 19 | M5.6 | S13W34 | 10656 | |
| 18:09 | 18:18 | 23 | M1.3 | S13W36 | 10656 | |
| 20:09 | 20:16 | 50 | M1.3 | S13W39 | 10656 |
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.
← X1.0 2004-08-13M5.6 2004-08-14 →
About this page
A M7.4 flare that began 2004-08-14 05:36 UTC; No. 19 of 1,046 C-class-or-larger flares in 2004.