Top 50 tempestes geomagnètiques de 1985

On this page you will find an overview of the strongest geomagnetic storms of 1985 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
1	1985/04/21	-158nT	103	8+
2	1985/11/29	-147nT	37	7-
3	1985/11/30	-134nT	52	7+
4	1985/01/28	-125nT	58	6
5	1985/04/20	-124nT	53	7-
6	1985/04/28	-98nT	61	7
7	1985/01/29	-89nT	24	6-
8	1985/12/19	-87nT	41	6-
9	1985/10/05	-86nT	66	7
10	1985/02/28	-84nT	60	7
11	1985/12/13	-82nT	30	5+
12	1985/05/02	-81nT	38	6
13	1985/06/10	-77nT	30	6-
14	1985/04/22	-70nT	11	4-
15	1985/04/30	-66nT	42	7+
16	1985/07/12	-65nT	48	7-
17	1985/04/29	-65nT	17	6
18	1985/08/31	-65nT	32	5
19	1985/12/30	-63nT	46	6
20	1985/04/09	-62nT	38	6+
21	1985/02/06	-61nT	46	6-
22	1985/10/06	-61nT	41	6-
23	1985/09/19	-60nT	35	6
24	1985/12/01	-60nT	15	5-
25	1985/12/28	-59nT	35	5+
26	1985/07/31	-58nT	36	5+
27	1985/04/19	-57nT	21	5
28	1985/03/05	-56nT	42	6+
29	1985/12/02	-54nT	14	4-
30	1985/12/10	-54nT	17	4+
31	1985/04/27	-54nT	33	6-
32	1985/01/01	-53nT	33	6-
33	1985/11/03	-52nT	28	5+
34	1985/03/01	-52nT	16	5+
35	1985/11/02	-52nT	32	6
36	1985/01/09	-52nT	46	6
37	1985/12/20	-52nT	11	4
38	1985/08/01	-51nT	18	4+
39	1985/08/13	-51nT	41	6
40	1985/12/04	-51nT	12	4
41	1985/10/08	-50nT	16	4-
42	1985/11/27	-50nT	20	5-
43	1985/10/07	-50nT	27	5
44	1985/02/08	-49nT	24	5-
45	1985/05/01	-49nT	10	3
46	1985/11/13	-48nT	24	6
47	1985/03/02	-48nT	22	4+
48	1985/04/24	-47nT	17	4+
49	1985/03/07	-46nT	22	5-
50	1985/02/27	-46nT	19	7-

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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
Last 30 days	90.3 +19

Aquest dia a la història*

Erupcions solars
1	2001	M7.89
2	2017	M6.34
3	2001	M5.75
4	2025	M5.6
5	2024	M3.9

		Dst	G
1	1960	-327	G4
2	2001	-228	G2
3	1976	-218	G4
4	1973	-211	G4
5	1989	-93	G2

*des del 1994

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