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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.

RegionStartMaximumEnd
1M1.172018/02/0713:3113:4713:54
2C6.622018/03/30270307:5708:0408:08
3C6.592018/02/10269913:0213:2113:36
4C3.932018/05/28271217:0417:1017:12
5C3.052018/06/21271501:0901:1501:18
6C2.862018/05/2318:0318:2118:33
7C2.782018/03/02270010:5611:0711:13
8C2.442018/02/07269914:3514:3914:44
9C2.42018/07/0619:4120:0720:42
10C2.122018/02/12269900:1501:3503:21
11C1.572018/02/04269920:1820:2420:30
12C1.512018/02/06269918:4518:5819:44
13C1.432018/06/06271210:4411:0011:06
14C1.42018/05/24271012:2212:3012:35
15C1.362018/01/1807:2807:3507:39
16C1.342018/01/22269602:3702:5703:20
17C1.282018/04/01270312:5113:0813:19
18C1.282018/05/2214:4714:5915:19
19C1.242018/06/24271501:3101:4501:51
20C1.172018/02/11269909:5010:0310:14
21C1.162018/05/2313:0113:0513:09
22C1.132018/06/03271207:5307:5607:58
23C1.122018/02/05269918:1818:2418:26
24C1.112018/02/07269900:1900:3800:46
25C1.042018/02/08269916:5116:5917:21
26C1.032018/02/09269915:4015:4715:52
27C1.022018/10/12272414:0414:0814:13
28C1.022018/05/2815:0215:0715:11
29C1.012018/03/31270308:5909:1109:23
30C1.012018/05/28271216:2916:3616:39
31C1.012018/02/04269921:1021:1521:18
32B9.592018/03/02270000:3000:5201:17
33B9.142018/02/04269919:0619:2219:27
34B8.982018/06/20271519:2819:3519:39
35B8.812018/02/08269920:2520:3420:41
36B8.462018/02/0508:0908:2208:27
37B7.732018/02/06269914:1414:2614:48
38B7.522018/04/20270616:5517:0417:12
39B7.492018/02/08269919:4319:5520:01
40B7.392018/05/2815:5716:0116:05
41B7.252018/02/08269915:2015:3015:35
42B7.172018/03/02270005:1405:2705:34
43B7.092018/02/08269918:3918:4518:50
44B7.072018/05/31271200:5901:0801:21
45B6.812018/03/03270004:0104:0704:12
46B6.782018/06/23271314:3514:3814:40
47B6.692018/02/08269921:2221:3921:45
48B6.582018/02/11269901:0401:0901:11
49B6.572018/02/09269916:3816:4316:54
50B6.452018/02/10269921:3521:4821:56
The solar wind speed is currently high (782.99 km/sec.)
The strength of the interplanetary magnetic field is moderate (16.54nT), the direction is North (5.26nT).

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05:03 UTC - Coronal mass ejection arrival

CME impact detected - Current Solar Wind Speed 811km/sec - IMF: Bt (strength): 16nT & Bz: 16nT (North).

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03:30 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 02:20 UTC

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01:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 23:59 UTC

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Thursday, 6 November 2025
22:33 UTC - Hemispheric Power Index

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G3 geomagnetic storm watch

Camera's ready? The NOAA SWPC has issued a strong G3 geomagnetic storm watch in response to the possibe arrival of up to three coronal mass ejections.

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Last X-flare2025/11/04X1.1
Last M-flare2025/11/06M1.1
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Spotless days
Last spotless day2022/06/08
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September 2025129.8 -3.7
November 202570.8 -59
Last 30 days92.1 -37.9

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