Top 50 tempestes geomagnètiques de 1981

On this page you will find an overview of the strongest geomagnetic storms of 1981 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	1981/04/13	-311nT	121	8+
2	1981/07/25	-226nT	134	8+
3	1981/03/05	-215nT	81	7+
4	1981/07/26	-197nT	78	8
5	1981/10/20	-192nT	67	7
6	1981/10/22	-185nT	72	7
7	1981/04/12	-163nT	96	7
8	1981/10/23	-149nT	27	6-
9	1981/05/11	-137nT	61	7-
10	1981/10/21	-136nT	33	6-
11	1981/03/06	-136nT	11	3+
12	1981/10/14	-133nT	73	8
13	1981/02/07	-131nT	20	6
14	1981/04/14	-129nT	27	5
15	1981/11/12	-124nT	39	7-
16	1981/02/06	-123nT	48	7-
17	1981/05/09	-119nT	39	6+
18	1981/05/16	-119nT	59	6+
19	1981/05/18	-118nT	57	7
20	1981/05/15	-114nT	54	7
21	1981/10/11	-113nT	46	6-
22	1981/08/23	-101nT	56	6+
23	1981/07/27	-99nT	24	5
24	1981/05/10	-99nT	32	7
25	1981/04/20	-97nT	53	6+
26	1981/04/27	-95nT	43	6
27	1981/04/21	-94nT	41	5+
28	1981/03/07	-90nT	20	5-
29	1981/03/14	-90nT	45	6
30	1981/07/23	-89nT	37	6-
31	1981/04/22	-88nT	33	5
32	1981/10/07	-87nT	32	6+
33	1981/04/26	-85nT	62	7+
34	1981/09/26	-84nT	32	5
35	1981/10/08	-84nT	25	5
36	1981/12/30	-82nT	30	6-
37	1981/08/24	-82nT	28	5
38	1981/04/19	-81nT	45	6
39	1981/02/09	-81nT	22	5+
40	1981/11/23	-81nT	20	4+
41	1981/05/17	-81nT	13	5+
42	1981/04/23	-80nT	31	5-
43	1981/11/17	-80nT	32	5
44	1981/11/11	-78nT	31	6
45	1981/10/24	-75nT	18	5
46	1981/10/25	-75nT	18	5-
47	1981/06/29	-74nT	33	6
48	1981/02/05	-74nT	25	4+
49	1981/10/15	-74nT	20	4+
50	1981/10/12	-73nT	12	4

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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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