Top 50 geomagnetic storms of 1964

On this page you will find an overview of the strongest geomagnetic storms of 1964 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	1964/01/02	-91nT	53	7-
2	1964/06/10	-91nT	49	7-
3	1964/04/01	-87nT	46	7+
4	1964/04/02	-74nT	26	5+
5	1964/05/11	-72nT	19	5+
6	1964/05/10	-67nT	20	5-
7	1964/03/04	-60nT	52	6
8	1964/02/21	-53nT	15	5-
9	1964/03/05	-49nT	33	6-
10	1964/05/01	-48nT	23	6
11	1964/03/12	-46nT	16	5-
12	1964/04/03	-46nT	18	4+
13	1964/01/03	-46nT	21	4+
14	1964/10/12	-44nT	15	4+
15	1964/02/20	-41nT	18	5+
16	1964/01/16	-40nT	27	5
17	1964/08/04	-40nT	34	6+
18	1964/04/28	-39nT	33	5+
19	1964/06/11	-39nT	25	5-
20	1964/03/30	-38nT	26	6-
21	1964/04/27	-37nT	26	5+
22	1964/02/13	-37nT	32	5
23	1964/03/06	-37nT	17	4
24	1964/05/15	-36nT	28	6
25	1964/02/09	-36nT	15	4
26	1964/09/28	-36nT	35	6-
27	1964/02/25	-36nT	19	6-
28	1964/03/22	-35nT	28	6-
29	1964/09/22	-35nT	44	8-
30	1964/02/08	-35nT	20	6-
31	1964/11/23	-34nT	20	5-
32	1964/01/04	-34nT	19	4+
33	1964/04/30	-34nT	11	5-
34	1964/09/30	-34nT	22	5-
35	1964/03/07	-33nT	12	4-
36	1964/07/18	-33nT	24	5
37	1964/10/26	-32nT	18	5+
38	1964/02/06	-31nT	31	5+
39	1964/04/04	-31nT	11	4-
40	1964/03/09	-30nT	9	4
41	1964/01/17	-29nT	17	4+
42	1964/01/05	-29nT	8	3-
43	1964/04/11	-28nT	14	5-
44	1964/03/08	-28nT	18	4
45	1964/01/06	-27nT	5	2+
46	1964/02/01	-27nT	10	3+
47	1964/04/05	-27nT	11	4
48	1964/03/21	-27nT	12	4-
49	1964/03/23	-27nT	30	6
50	1964/10/09	-27nT	14	4+

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This day in history*

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		Dst	G
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2	2023	-72	G2
3	2003	-68	G2
4	1989	-50
5	1984	-48	G3

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