Solar Flare WatchHome › Flare history › Region ranking
Solar flares from active region 3027
C15
M10
X0
LargestM8.21981-04-04
Span14 days
Flares by day
2
2
2
1
3
1
4
1
2
5
1
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1981-04-04 | 08:30 | 08:35 | 21 | M8.2 | N36E72 | 3027 |
| 1981-04-04 | 21:48 | 22:06 | 52 | M1.0 | N18E71 | 3027 |
| 1981-04-05 | 02:50 | 02:58 | 63 | C5.0 | N18E65 | 3027 |
| 1981-04-05 | 18:52 | 18:54 | 120 | C7.4 | N17E56 | 3027 |
| 1981-04-06 | 06:55 | 07:12 | 36 | C7.6 | N26E47 | 3027 |
| 1981-04-06 | 21:00 | 21:00 | 20 | C2.8 | N17E41 | 3027 |
| 1981-04-07 | 01:03 | 01:22 | 64 | M1.0 | N18E42 | 3027 |
| 1981-04-09 | 03:51 | 03:54 | 21 | C5.9 | N17E11 | 3027 |
| 1981-04-09 | 12:28 | 13:08 | 64 | M1.3 | – | 3027 |
| 1981-04-09 | 17:10 | 17:28 | 20 | M3.9 | N17E04 | 3027 |
| 1981-04-11 | 18:27 | 18:34 | 24 | M1.2 | N17W23 | 3027 |
| 1981-04-12 | 07:46 | 07:57 | 18 | M1.0 | – | 3027 |
| 1981-04-12 | 13:52 | 13:53 | 5 | C5.4 | N18W34 | 3027 |
| 1981-04-12 | 15:55 | 16:07 | 18 | C4.8 | N18W36 | 3027 |
| 1981-04-12 | 22:35 | 23:03 | 45 | C9.1 | N18W37 | 3027 |
| 1981-04-13 | 18:59 | 19:02 | 59 | M1.0 | N19W47 | 3027 |
| 1981-04-14 | 16:44 | 16:49 | 9 | C6.6 | N18W64 | 3027 |
| 1981-04-14 | 20:51 | 20:56 | 19 | C7.1 | N18W64 | 3027 |
| 1981-04-15 | 05:58 | 06:02 | 9 | C6.5 | N20W72 | 3027 |
| 1981-04-15 | 06:40 | 06:46 | 28 | M1.8 | N18W68 | 3027 |
| 1981-04-15 | 15:17 | 15:27 | 23 | M1.3 | N19W77 | 3027 |
| 1981-04-15 | 17:08 | 17:10 | 8 | C9.2 | N19W75 | 3027 |
| 1981-04-15 | 18:20 | 18:25 | 20 | C6.4 | N20W80 | 3027 |
| 1981-04-16 | 02:54 | 02:56 | 12 | C4.4 | N19W85 | 3027 |
| 1981-04-17 | 03:23 | 03:27 | 15 | C8.0 | – | 3027 |
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 3027 produced 25 C+ flares between 1981-04-04 and 1981-04-17.