Top 50 solar flares of the year 2018
On this page you will find an overview of the strongest solar flares of the year 2018 together with links to more information in our archive and a video (if available) of the event.
| Region | Start | Maximum | End | ||||
|---|---|---|---|---|---|---|---|
| 1 | M1.17 | 2018/02/07 | 13:31 | 13:47 | 13:54 | ||
| 2 | C6.62 | 2018/03/30 | 2703 | 07:57 | 08:04 | 08:08 | |
| 3 | C6.59 | 2018/02/10 | 2699 | 13:02 | 13:21 | 13:36 | |
| 4 | C3.93 | 2018/05/28 | 2712 | 17:04 | 17:10 | 17:12 | |
| 5 | C3.05 | 2018/06/21 | 2715 | 01:09 | 01:15 | 01:18 | |
| 6 | C2.86 | 2018/05/23 | 18:03 | 18:21 | 18:33 | ||
| 7 | C2.78 | 2018/03/02 | 2700 | 10:56 | 11:07 | 11:13 | |
| 8 | C2.44 | 2018/02/07 | 2699 | 14:35 | 14:39 | 14:44 | |
| 9 | C2.4 | 2018/07/06 | 19:41 | 20:07 | 20:42 | ||
| 10 | C2.12 | 2018/02/12 | 2699 | 00:15 | 01:35 | 03:21 | |
| 11 | C1.57 | 2018/02/04 | 2699 | 20:18 | 20:24 | 20:30 | |
| 12 | C1.51 | 2018/02/06 | 2699 | 18:45 | 18:58 | 19:44 | |
| 13 | C1.43 | 2018/06/06 | 2712 | 10:44 | 11:00 | 11:06 | |
| 14 | C1.4 | 2018/05/24 | 2710 | 12:22 | 12:30 | 12:35 | |
| 15 | C1.36 | 2018/01/18 | 07:28 | 07:35 | 07:39 | ||
| 16 | C1.34 | 2018/01/22 | 2696 | 02:37 | 02:57 | 03:20 | |
| 17 | C1.28 | 2018/04/01 | 2703 | 12:51 | 13:08 | 13:19 | |
| 18 | C1.28 | 2018/05/22 | 14:47 | 14:59 | 15:19 | ||
| 19 | C1.24 | 2018/06/24 | 2715 | 01:31 | 01:45 | 01:51 | |
| 20 | C1.17 | 2018/02/11 | 2699 | 09:50 | 10:03 | 10:14 | |
| 21 | C1.16 | 2018/05/23 | 13:01 | 13:05 | 13:09 | ||
| 22 | C1.13 | 2018/06/03 | 2712 | 07:53 | 07:56 | 07:58 | |
| 23 | C1.12 | 2018/02/05 | 2699 | 18:18 | 18:24 | 18:26 | |
| 24 | C1.11 | 2018/02/07 | 2699 | 00:19 | 00:38 | 00:46 | |
| 25 | C1.04 | 2018/02/08 | 2699 | 16:51 | 16:59 | 17:21 | |
| 26 | C1.03 | 2018/02/09 | 2699 | 15:40 | 15:47 | 15:52 | |
| 27 | C1.02 | 2018/10/12 | 2724 | 14:04 | 14:08 | 14:13 | |
| 28 | C1.02 | 2018/05/28 | 15:02 | 15:07 | 15:11 | ||
| 29 | C1.01 | 2018/03/31 | 2703 | 08:59 | 09:11 | 09:23 | |
| 30 | C1.01 | 2018/05/28 | 2712 | 16:29 | 16:36 | 16:39 | |
| 31 | C1.01 | 2018/02/04 | 2699 | 21:10 | 21:15 | 21:18 | |
| 32 | B9.59 | 2018/03/02 | 2700 | 00:30 | 00:52 | 01:17 | |
| 33 | B9.14 | 2018/02/04 | 2699 | 19:06 | 19:22 | 19:27 | |
| 34 | B8.98 | 2018/06/20 | 2715 | 19:28 | 19:35 | 19:39 | |
| 35 | B8.81 | 2018/02/08 | 2699 | 20:25 | 20:34 | 20:41 | |
| 36 | B8.46 | 2018/02/05 | 08:09 | 08:22 | 08:27 | ||
| 37 | B7.73 | 2018/02/06 | 2699 | 14:14 | 14:26 | 14:48 | |
| 38 | B7.52 | 2018/04/20 | 2706 | 16:55 | 17:04 | 17:12 | |
| 39 | B7.49 | 2018/02/08 | 2699 | 19:43 | 19:55 | 20:01 | |
| 40 | B7.39 | 2018/05/28 | 15:57 | 16:01 | 16:05 | ||
| 41 | B7.25 | 2018/02/08 | 2699 | 15:20 | 15:30 | 15:35 | |
| 42 | B7.17 | 2018/03/02 | 2700 | 05:14 | 05:27 | 05:34 | |
| 43 | B7.09 | 2018/02/08 | 2699 | 18:39 | 18:45 | 18:50 | |
| 44 | B7.07 | 2018/05/31 | 2712 | 00:59 | 01:08 | 01:21 | |
| 45 | B6.81 | 2018/03/03 | 2700 | 04:01 | 04:07 | 04:12 | |
| 46 | B6.78 | 2018/06/23 | 2713 | 14:35 | 14:38 | 14:40 | |
| 47 | B6.69 | 2018/02/08 | 2699 | 21:22 | 21:39 | 21:45 | |
| 48 | B6.58 | 2018/02/11 | 2699 | 01:04 | 01:09 | 01:11 | |
| 49 | B6.57 | 2018/02/09 | 2699 | 16:38 | 16:43 | 16:54 | |
| 50 | B6.45 | 2018/02/10 | 2699 | 21:35 | 21:48 | 21:56 |
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Space weather facts
| Last X-flare | 2024/11/06 | X2.39 |
| Last M-flare | 2024/11/13 | M1.7 |
| Last geomagnetic storm | 2024/11/10 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| October 2024 | 166.4 +25 |
| November 2024 | 166 -0.4 |
| Last 30 days | 163.2 +18.4 |