Solar Flare WatchHome › Flare history › Region ranking
Solar flares from active region 2984
C23
M6
X1
LargestX2.21981-03-25
Span8 days
Flares by day
2
4
2
6
4
8
4
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1981-03-18 | 00:35 | 00:38 | 8 | C1.8 | N09E28 | 2984 |
| 1981-03-18 | 18:59 | 19:02 | 23 | C9.2 | N06E16 | 2984 |
| 1981-03-20 | 05:34 | 05:36 | 20 | C3.4 | N08W05 | 2984 |
| 1981-03-20 | 08:26 | 08:28 | 19 | C4.9 | N08W07 | 2984 |
| 1981-03-20 | 09:08 | 09:11 | 10 | C2.4 | N06W04 | 2984 |
| 1981-03-20 | 22:53 | 23:03 | 17 | C2.8 | N09W14 | 2984 |
| 1981-03-21 | 01:28 | 01:31 | 37 | C4.8 | N09W16 | 2984 |
| 1981-03-21 | 21:29 | 21:32 | 5 | C4.1 | N09W21 | 2984 |
| 1981-03-22 | 17:17 | 17:28 | 39 | C6.9 | N08W43 | 2984 |
| 1981-03-22 | 18:46 | 18:46 | 17 | C4.1 | N09W37 | 2984 |
| 1981-03-22 | 19:42 | 19:50 | 30 | M1.5 | N10W45 | 2984 |
| 1981-03-22 | 21:45 | 21:46 | 7 | C2.5 | N10W46 | 2984 |
| 1981-03-22 | 22:17 | 22:18 | 31 | C8.6 | N09W41 | 2984 |
| 1981-03-22 | 23:41 | 23:53 | 52 | M8.9 | N08W47 | 2984 |
| 1981-03-23 | 06:53 | 06:58 | 33 | M8.5 | N10W54 | 2984 |
| 1981-03-23 | 08:26 | 08:28 | 15 | C1.8 | N12W44 | 2984 |
| 1981-03-23 | 17:35 | 17:37 | 4 | M1.2 | N07W57 | 2984 |
| 1981-03-23 | 21:14 | 21:18 | 25 | M1.0 | N09W61 | 2984 |
| 1981-03-24 | 01:55 | 01:58 | 35 | M2.4 | N08W58 | 2984 |
| 1981-03-24 | 03:49 | 03:53 | 11 | C1.9 | N09W62 | 2984 |
| 1981-03-24 | 07:11 | 07:25 | 44 | C7.3 | N09W68 | 2984 |
| 1981-03-24 | 09:02 | 09:05 | 19 | C2.3 | N09W68 | 2984 |
| 1981-03-24 | 09:43 | 09:44 | 7 | C3.1 | N09W69 | 2984 |
| 1981-03-24 | 16:12 | 16:17 | 17 | C2.1 | N07W67 | 2984 |
| 1981-03-24 | 17:30 | 17:31 | 25 | C4.2 | N12W72 | 2984 |
| 1981-03-24 | 19:01 | 19:02 | 11 | C5.5 | N07W73 | 2984 |
| 1981-03-25 | 05:20 | 05:25 | 12 | C4.8 | N11W89 | 2984 |
| 1981-03-25 | 06:14 | 06:32 | 47 | C9.9 | N11W78 | 2984 |
| 1981-03-25 | 07:53 | 07:57 | 8 | C8.6 | N09W89 | 2984 |
| 1981-03-25 | 20:39 | 20:48 | 44 | X2.2 | N09W89 | 2984 |
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 2984 produced 30 C+ flares between 1981-03-18 and 1981-03-25.