Solar Flare WatchHome › Flare history › 2001
M8.4 solar flare on 2001-04-05
ClassM8.4NOAA report
Peak09:222001-04-05 UTC
Duration77 min
Peak flux8.4e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 27 / 2429 |
| Other M/X flares that day | 4 |
| M/X flares that month | 46 |
| Solar cycle | Cycle 23 |
| Active region | AR 9417 (6 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
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 02:00 | 02:20 | 71 | M3.1 | – | 9418 | |
| 05:10 | 05:18 | 17 | M1.1 | – | – | |
| 07:57 | 08:34 | 39 | M1.2 | S08E35 | 9417 | |
| 16:57 | 17:25 | 77 | M5.1 | S24E50 | 9415 |
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.
← X1.2 2001-04-03M5.1 2001-04-05 →
About this page
A M8.4 flare that began 2001-04-05 08:37 UTC; No. 27 of 2,429 C-class-or-larger flares in 2001.