Solar Flare WatchHome › Flare history › Region ranking
Solar flares from active region 11158
C56
M5
X1
LargestX2.22011-02-15
Span9 days
Flares by day
3
11
5
10
11
7
7
8
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2011-02-13 | 12:29 | 12:36 | 17 | C1.1 | – | 11158 |
| 2011-02-13 | 13:44 | 13:56 | 27 | C4.7 | – | 11158 |
| 2011-02-13 | 17:28 | 17:38 | 19 | M6.6 | – | 11158 |
| 2011-02-14 | 02:35 | 02:42 | 11 | C1.6 | – | 11158 |
| 2011-02-14 | 04:29 | 04:49 | 40 | C8.3 | – | 11158 |
| 2011-02-14 | 06:51 | 06:58 | 12 | C6.6 | – | 11158 |
| 2011-02-14 | 08:39 | 08:49 | 25 | C1.8 | – | 11158 |
| 2011-02-14 | 11:51 | 12:00 | 35 | C1.7 | – | 11158 |
| 2011-02-14 | 12:41 | 12:53 | 17 | C9.4 | – | 11158 |
| 2011-02-14 | 13:47 | 14:27 | 55 | C7.0 | – | 11158 |
| 2011-02-14 | 17:20 | 17:26 | 12 | M2.2 | – | 11158 |
| 2011-02-14 | 19:23 | 19:30 | 13 | C6.6 | – | 11158 |
| 2011-02-14 | 23:14 | 23:19 | 12 | C1.2 | – | 11158 |
| 2011-02-14 | 23:40 | 23:46 | 17 | C2.7 | – | 11158 |
| 2011-02-15 | 01:44 | 01:56 | 22 | X2.2 | – | 11158 |
| 2011-02-15 | 14:32 | 14:44 | 19 | C4.8 | – | 11158 |
| 2011-02-15 | 18:07 | 18:44 | 50 | C1.7 | – | 11158 |
| 2011-02-15 | 19:30 | 20:33 | 83 | C6.6 | – | 11158 |
| 2011-02-15 | 22:49 | 22:54 | 7 | C1.3 | – | 11158 |
| 2011-02-16 | 01:56 | 02:00 | 9 | C2.2 | – | 11158 |
| 2011-02-16 | 09:02 | 09:11 | 17 | C9.9 | – | 11158 |
| 2011-02-16 | 10:25 | 10:32 | 14 | C3.2 | – | 11158 |
| 2011-02-16 | 11:58 | 12:02 | 7 | C1.0 | – | 11158 |
| 2011-02-16 | 14:19 | 14:25 | 10 | M1.6 | – | 11158 |
| 2011-02-16 | 15:27 | 15:32 | 10 | C7.7 | – | 11158 |
| 2011-02-16 | 19:29 | 19:36 | 14 | C1.3 | – | 11158 |
| 2011-02-16 | 20:11 | 20:15 | 8 | C1.1 | – | 11158 |
| 2011-02-16 | 21:06 | 21:11 | 8 | C4.2 | – | 11158 |
| 2011-02-16 | 23:02 | 00:25 | 125 | C2.8 | – | 11158 |
| 2011-02-17 | 01:41 | 01:46 | 9 | C6.1 | – | 11158 |
| 2011-02-17 | 02:46 | 03:08 | 35 | C2.3 | – | 11158 |
| 2011-02-17 | 04:09 | 04:15 | 13 | C1.5 | – | 11158 |
| 2011-02-17 | 05:33 | 05:36 | 7 | C1.0 | – | 11158 |
| 2011-02-17 | 06:44 | 06:47 | 7 | C1.2 | – | 11158 |
| 2011-02-17 | 08:09 | 08:13 | 9 | C1.2 | – | 11158 |
| 2011-02-17 | 09:24 | 09:30 | 11 | C1.9 | – | 11158 |
| 2011-02-17 | 10:25 | 10:28 | 7 | C2.6 | – | 11158 |
| 2011-02-17 | 12:33 | 12:36 | 6 | C2.4 | – | 11158 |
| 2011-02-17 | 15:49 | 15:54 | 15 | C1.3 | – | 11158 |
| 2011-02-17 | 21:30 | 21:35 | 10 | C1.1 | – | 11158 |
| 2011-02-18 | 01:02 | 01:08 | 12 | C1.7 | – | 11158 |
| 2011-02-18 | 06:27 | 06:33 | 12 | C8.5 | – | 11158 |
| 2011-02-18 | 09:55 | 10:11 | 20 | M6.6 | – | 11158 |
| 2011-02-18 | 12:59 | 13:03 | 7 | M1.4 | – | 11158 |
| 2011-02-18 | 14:27 | 14:32 | 8 | C4.0 | – | 11158 |
| 2011-02-18 | 14:57 | 15:05 | 12 | C5.0 | – | 11158 |
| 2011-02-18 | 18:13 | 18:21 | 12 | C3.2 | – | 11158 |
| 2011-02-19 | 01:33 | 01:37 | 8 | C1.3 | – | 11158 |
| 2011-02-19 | 02:21 | 02:25 | 9 | C1.8 | – | 11158 |
| 2011-02-19 | 07:40 | 07:44 | 7 | C1.9 | – | 11158 |
| 2011-02-19 | 15:24 | 15:29 | 17 | C1.5 | – | 11158 |
| 2011-02-19 | 16:26 | 16:30 | 6 | C1.9 | – | 11158 |
| 2011-02-19 | 16:39 | 16:43 | 6 | C6.1 | – | 11158 |
| 2011-02-19 | 21:07 | 21:13 | 10 | C1.9 | – | 11158 |
| 2011-02-21 | 02:13 | 02:24 | 14 | C4.6 | – | 11158 |
| 2011-02-21 | 03:10 | 03:15 | 8 | C1.8 | – | 11158 |
| 2011-02-21 | 04:04 | 04:10 | 9 | C1.5 | – | 11158 |
| 2011-02-21 | 05:00 | 05:06 | 8 | C4.1 | – | 11158 |
| 2011-02-21 | 09:01 | 09:06 | 8 | C2.7 | – | 11158 |
| 2011-02-21 | 10:00 | 10:04 | 7 | C1.8 | – | 11158 |
| 2011-02-21 | 10:08 | 10:12 | 7 | C7.8 | – | 11158 |
| 2011-02-21 | 15:39 | 15:44 | 16 | C1.5 | – | 11158 |
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 11158 produced 62 C+ flares between 2011-02-13 and 2011-02-21.