Top 50 tempestes geomagnètiques de 1990

On this page you will find an overview of the strongest geomagnetic storms of 1990 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	1990/04/10	-281nT	124	8
2	1990/04/11	-190nT	64	7-
3	1990/03/30	-187nT	69	8
4	1990/04/12	-174nT	99	8-
5	1990/03/12	-162nT	42	7+
6	1990/06/13	-150nT	70	8-
7	1990/03/13	-148nT	29	6+
8	1990/03/21	-136nT	76	7+
9	1990/11/27	-135nT	45	7-
10	1990/10/10	-133nT	48	6
11	1990/06/12	-132nT	89	8+
12	1990/07/29	-129nT	75	7
13	1990/08/26	-113nT	63	7-
14	1990/04/17	-113nT	40	6
15	1990/03/25	-111nT	39	6-
16	1990/03/26	-111nT	41	6
17	1990/07/28	-110nT	102	8-
18	1990/04/13	-108nT	38	5+
19	1990/04/24	-106nT	30	6
20	1990/11/28	-105nT	18	5-
21	1990/03/22	-104nT	28	5-
22	1990/04/14	-104nT	45	6
23	1990/02/16	-99nT	50	7-
24	1990/08/23	-99nT	77	7
25	1990/02/24	-98nT	29	5+
26	1990/08/22	-98nT	49	6-
27	1990/04/29	-98nT	30	5
28	1990/04/18	-95nT	24	5+
29	1990/02/25	-95nT	29	5
30	1990/04/23	-94nT	37	6-
31	1990/06/14	-93nT	79	8-
32	1990/05/22	-90nT	32	5+
33	1990/02/17	-89nT	33	6
34	1990/03/31	-88nT	7	2+
35	1990/03/14	-88nT	26	5+
36	1990/05/27	-87nT	45	7-
37	1990/02/27	-84nT	26	5
38	1990/04/30	-84nT	19	6-
39	1990/02/23	-82nT	36	5
40	1990/08/24	-82nT	24	5+
41	1990/04/15	-80nT	24	5
42	1990/02/07	-80nT	25	5
43	1990/02/15	-79nT	36	7-
44	1990/02/14	-79nT	30	6+
45	1990/06/15	-77nT	9	4-
46	1990/02/26	-76nT	19	4
47	1990/03/23	-76nT	29	5-
48	1990/08/21	-76nT	38	6
49	1990/02/19	-75nT	33	5
50	1990/03/29	-75nT	27	5+

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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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