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Solar flares from active region 3388
C14
M4
X0
LargestM2.01981-10-11
Span6 days
Flares by day
1
6
2
2
2
5
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1981-10-06 | 07:18 | 07:31 | 29 | C4.8 | S11E27 | 3388 |
| 1981-10-07 | 03:10 | 03:16 | 24 | C3.3 | S10E16 | 3388 |
| 1981-10-07 | 08:37 | 08:41 | 33 | C2.4 | S10E13 | 3388 |
| 1981-10-07 | 13:27 | 13:38 | 22 | M1.4 | – | 3388 |
| 1981-10-07 | 17:36 | 18:17 | 169 | M1.5 | S10E06 | 3388 |
| 1981-10-07 | 21:14 | 22:28 | 107 | C2.8 | S10E06 | 3388 |
| 1981-10-07 | 22:24 | 22:26 | 15 | C5.8 | S10E03 | 3388 |
| 1981-10-08 | 07:41 | 07:48 | 15 | C2.7 | S09W01 | 3388 |
| 1981-10-08 | 16:02 | 16:10 | 22 | C6.1 | – | 3388 |
| 1981-10-09 | 05:12 | 05:14 | 20 | C1.4 | S10W12 | 3388 |
| 1981-10-09 | 17:45 | 17:46 | 20 | C1.8 | S11W17 | 3388 |
| 1981-10-10 | 18:55 | 19:18 | 52 | C2.7 | S10W32 | 3388 |
| 1981-10-10 | 20:23 | 21:03 | 42 | M1.9 | S10W35 | 3388 |
| 1981-10-11 | 03:33 | 03:36 | 33 | M2.0 | S10W58 | 3388 |
| 1981-10-11 | 05:51 | 05:54 | 17 | C3.9 | S10E39 | 3388 |
| 1981-10-11 | 07:45 | 08:37 | 89 | C9.4 | S10E42 | 3388 |
| 1981-10-11 | 08:19 | 08:37 | 28 | C9.5 | – | 3388 |
| 1981-10-11 | 12:37 | 12:42 | 27 | C6.0 | S11W43 | 3388 |
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 3388 produced 18 C+ flares between 1981-10-06 and 1981-10-11.