Top 50 tempestes geomagnètiques de 2015

On this page you will find an overview of the strongest geomagnetic storms of 2015 together with links to more information in our archive. Storms are ranked by the Disturbance storm-time index (Dst) that is designed to measure the magnetic signature of magnetospheric currents observed in the equatorial regions. The Dst index is provided by the World Data Center for geomagnetism in Kyoto.

		Dst	Ap	Kp max	Velocitat	IMF Bt	IMF Bz
1	2015/03/17	-234nT	108	8-	640.0km / seg	35.67nT	-28.57nT
2	2015/03/18	-200nT	47	6	738.5km / seg	17.20nT	-10.68nT
3	2015/06/23	-198nT	72	8-	808.4km / seg	31.95nT	-24.65nT
4	2015/12/20	-166nT	70	7-	500.2km / seg	19.60nT	-18.50nT
5	2015/12/21	-159nT	38	7-	467.1km / seg	18.40nT	-17.30nT
6	2015/10/07	-130nT	74	7+	844.6km / seg	22.80nT	-18.10nT
7	2015/06/22	-114nT	57	8+	704.7km / seg	42.18nT	-39.42nT
8	2015/01/07	-107nT	31	6+	505.6km / seg	23.08nT	-20.98nT
9	2015/09/09	-105nT	59	6	512.4km / seg	15.20nT	-10.10nT
10	2015/12/31	-105nT	35	6-	575.1km / seg	17.30nT	-16.50nT
11	2015/08/27	-103nT	52	6+	414.5km / seg	14.00nT	-13.60nT
12	2015/08/28	-102nT	40	6-	493.5km / seg	17.20nT	-16.30nT
13	2015/03/19	-99nT	26	5	684.8km / seg	8.49nT	-7.29nT
14	2015/08/16	-98nT	32	6-	636.7km / seg	13.60nT	-11.20nT
15	2015/10/08	-97nT	45	6-	844.5km / seg	7.60nT	-6.60nT
16	2015/04/16	-88nT	42	6	706.1km / seg	13.47nT	-12.90nT
17	2015/11/07	-87nT	38	6	719.4km / seg	19.10nT	-11.70nT
18	2015/09/11	-87nT	60	7	674.5km / seg	18.70nT	-16.70nT
19	2015/06/24	-86nT	16	4	779.4km / seg	12.93nT	-5.94nT
20	2015/04/11	-85nT	16	4	390.8km / seg	13.64nT	-9.19nT
21	2015/05/13	-82nT	46	6	743.7km / seg	18.47nT	-14.39nT
22	2015/06/25	-81nT	32	6-	682.8km / seg	16.09nT	-10.58nT
23	2015/09/20	-81nT	44	7	626.8km / seg	22.30nT	-17.80nT
24	2015/03/20	-81nT	22	5-	650.7km / seg	8.36nT	-6.18nT
25	2015/08/26	-79nT	27	5-	450.2km / seg	10.50nT	-9.30nT
26	2015/04/17	-79nT	22	5	735.0km / seg	8.88nT	-7.26nT
27	2015/01/04	-78nT	18	5	450.3km / seg	11.51nT	-9.88nT
28	2015/09/07	-75nT	44	6+	678.8km / seg	14.10nT	-11.60nT
29	2015/07/05	-74nT	22	5+	566.5km / seg	15.89nT	-14.04nT
30	2015/09/08	-73nT	24	6	582.8km / seg	21.40nT	-9.60nT
31	2015/07/23	-72nT	21	5+	541.2km / seg	11.47nT	-11.39nT
32	2015/08/15	-71nT	39	6+	549.9km / seg	27.90nT	-21.30nT
33	2015/03/21	-69nT	12	4	726.7km / seg	11.23nT	-6.17nT
34	2015/02/18	-69nT	18	5	474.5km / seg	11.42nT	-10.15nT
35	2015/07/13	-68nT	33	6-	679.8km / seg	10.33nT	-9.32nT
36	2015/06/08	-67nT	36	6	690.6km / seg	22.76nT	-20.03nT
37	2015/02/17	-67nT	22	5	453.2km / seg	16.54nT	-13.04nT
38	2015/01/05	-67nT	15	5+	557.8km / seg	15.40nT	-7.86nT
39	2015/04/15	-65nT	27	5+	634.2km / seg	17.83nT	-12.97nT
40	2015/07/04	-64nT	19	5+	575.1km / seg	24.19nT	-21.88nT
41	2015/08/19	-64nT	18	4	537.6km / seg	9.30nT	-8.30nT
42	2015/03/02	-64nT	28	5+	670.5km / seg	15.46nT	-11.58nT
43	2015/10/04	-63nT	17	4+	532.5km / seg	10.70nT	-9.20nT
44	2015/04/10	-60nT	34	5+	458.5km / seg	20.79nT	-16.10nT
45	2015/06/26	-60nT	8	3-	580.3km / seg	5.53nT	-4.02nT
46	2015/01/08	-58nT	13	4	527.5km / seg	13.21nT	-6.86nT
47	2015/02/24	-58nT	25	5+	527.7km / seg	15.78nT	-13.41nT
48	2015/08/23	-57nT	26	5+	611.0km / seg	15.60nT	-12.30nT
49	2015/10/09	-57nT	27	5-	809.0km / seg	6.40nT	-5.00nT
50	2015/05/11	-57nT	14	4-	388.0km / seg	10.51nT	-10.08nT

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Fets del temps al espai

Última Flamarada-X	2026/03/30	X1.5
Última Flamarada-M	2026/03/28	M1.3
Última tempesta geomagnètica	2026/03/25	Kp5+ (G1)

Dies sense taques
Last 365 days	3 dies
2026	3 dies (3%)
Últim dia sense taques	2026/02/24

Número mensual mitjà de taques solars
de febrer 2026	78.2 -34.3
d’abril 2026	130 +51.8
Last 30 days	91.6 +20.3

Aquest dia a la història*

Erupcions solars
1	2001	X28.5
2	2001	X2.01
3	2001	X1.59
4	2014	M9.35
5	2017	M8.22

		Dst	G
1	1960	-272	G3
2	1973	-173	G3
3	2001	-101	G1
4	1976	-101	G1
5	1994	-96	G3

*des del 1994

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