Cicle solar 20: les 50 principals tempestes geomagnètiques

On this page you will find an overview of the strongest geomagnetic storms from Solar Cycle 20 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	1967/05/26	-387nT	146	9
2	1967/05/25	-312nT	130	9
3	1970/03/08	-284nT	149	9
4	1970/03/09	-258nT	47	6+
5	1969/03/24	-228nT	79	8
6	1968/10/31	-224nT	112	8
7	1968/11/01	-216nT	122	8+
8	1973/04/01	-211nT	91	8+
9	1974/07/06	-204nT	130	9-
10	1972/11/01	-199nT	98	8
11	1972/06/18	-190nT	126	8+
12	1966/09/04	-189nT	112	9-
13	1969/02/02	-186nT	47	8
14	1970/08/17	-181nT	115	9-
15	1968/11/02	-179nT	82	8-
16	1973/04/02	-173nT	54	7
17	1971/12/17	-171nT	67	7+
18	1969/03/23	-164nT	47	8
19	1965/04/18	-162nT	68	8-
20	1969/02/03	-161nT	54	6
21	1967/01/14	-160nT	61	8-
22	1967/06/06	-160nT	46	8
23	1974/09/15	-159nT	73	8-
24	1966/09/03	-157nT	92	9-
25	1976/01/10	-156nT	47	7
26	1972/08/09	-154nT	74	8+
27	1970/12/14	-153nT	65	8+
28	1972/09/14	-146nT	54	8
29	1976/01/11	-146nT	41	7+
30	1971/04/15	-143nT	36	7-
31	1970/04/21	-141nT	90	8+
32	1974/09/16	-141nT	88	8
33	1970/04/22	-137nT	41	7
34	1969/02/11	-136nT	62	6+
35	1973/04/14	-134nT	57	8-
36	1967/02/16	-130nT	64	8
37	1967/01/08	-128nT	60	7-
38	1968/11/03	-125nT	35	7-
39	1972/08/05	-125nT	182	9-
40	1968/02/11	-124nT	51	6
41	1967/05/03	-123nT	87	7
42	1972/09/13	-123nT	53	7+
43	1967/05/27	-121nT	20	4+
44	1969/05/15	-121nT	131	8-
45	1971/04/14	-121nT	39	8-
46	1973/02/21	-121nT	49	7+
47	1967/02/07	-120nT	30	6+
48	1971/12/18	-120nT	22	5
49	1974/10/13	-120nT	86	7
50	1970/10/18	-119nT	39	7-

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Últimes notícies

dilluns, 30 de març 2026

X1.5 solar flare

dimarts, 17 de març 2026

M2.7 solar flare, CME arrival possible

diumenge, 1 de febrer 2026

Complex sunspot region 4366

Més notícies

Últims missatges del fòrum

AR4405 205 X1.5 CME (2026-03-30) 330 AR4403 35 AR4409 21 Filaments and prominences 542

Més temes

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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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