Solar Flare WatchHome › Flare history › Region ranking
Solar flares from active region 3406
C12
M3
X1
LargestX3.01981-10-14
Span11 days
Flares by day
1
3
2
1
1
2
2
2
2
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1981-10-14 | 17:05 | 17:10 | 58 | X3.0 | S06E86 | 3406 |
| 1981-10-15 | 01:21 | 01:23 | 10 | C1.9 | S09E72 | 3406 |
| 1981-10-15 | 14:20 | 14:28 | 19 | C5.4 | S08E72 | 3406 |
| 1981-10-15 | 22:32 | 22:35 | 7 | C2.9 | – | 3406 |
| 1981-10-16 | 15:20 | 15:25 | 15 | C1.5 | S06E60 | 3406 |
| 1981-10-16 | 22:12 | 22:33 | 86 | M1.0 | S09E52 | 3406 |
| 1981-10-17 | 14:43 | 14:52 | 38 | C2.7 | S03E43 | 3406 |
| 1981-10-18 | 15:46 | 16:08 | 147 | C2.7 | S04E28 | 3406 |
| 1981-10-19 | 03:19 | 03:23 | 66 | C8.4 | S08E27 | 3406 |
| 1981-10-19 | 10:16 | 10:19 | 7 | C1.9 | – | 3406 |
| 1981-10-20 | 03:16 | 03:30 | 34 | M1.1 | – | 3406 |
| 1981-10-20 | 07:14 | 07:33 | 29 | C3.4 | S08E04 | 3406 |
| 1981-10-21 | 00:03 | 00:25 | 97 | C5.6 | S05W01 | 3406 |
| 1981-10-21 | 18:54 | 18:55 | 14 | C2.1 | S03W13 | 3406 |
| 1981-10-24 | 05:46 | 05:48 | 17 | C2.2 | S09W46 | 3406 |
| 1981-10-24 | 23:36 | 23:52 | 34 | M1.9 | – | 3406 |
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.
About this page
NOAA active region 3406 produced 16 C+ flares between 1981-10-14 and 1981-10-24.