Top 50 geomagnetic storms of 1977

On this page you will find an overview of the strongest geomagnetic storms of 1977 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	1977/10/28	-159nT	47	7+
2	1977/10/27	-133nT	62	7-
3	1977/12/02	-124nT	69	7
4	1977/12/11	-112nT	38	5+
5	1977/04/06	-105nT	49	7
6	1977/12/03	-104nT	9	3+
7	1977/05/02	-98nT	66	6+
8	1977/10/19	-96nT	28	6
9	1977/04/07	-95nT	48	7-
10	1977/01/30	-95nT	30	5-
11	1977/07/29	-94nT	61	7-
12	1977/09/22	-92nT	63	7-
13	1977/04/19	-91nT	48	6+
14	1977/11/26	-87nT	19	5+
15	1977/09/20	-85nT	44	6-
16	1977/11/25	-85nT	15	5
17	1977/09/27	-84nT	24	6-
18	1977/10/18	-84nT	22	5
19	1977/09/21	-81nT	64	7+
20	1977/05/03	-77nT	15	5-
21	1977/09/19	-76nT	42	6
22	1977/12/05	-72nT	18	5-
23	1977/12/12	-71nT	21	6-
24	1977/10/12	-71nT	28	5
25	1977/09/23	-70nT	21	5
26	1977/01/31	-69nT	19	5+
27	1977/12/17	-67nT	12	5
28	1977/10/22	-67nT	22	5
29	1977/11/14	-65nT	42	6-
30	1977/04/20	-62nT	28	5
31	1977/08/05	-61nT	40	6
32	1977/11/15	-60nT	25	6-
33	1977/05/12	-59nT	19	6-
34	1977/12/04	-59nT	14	5-
35	1977/09/13	-58nT	28	5+
36	1977/04/09	-57nT	22	4+
37	1977/07/30	-57nT	17	4+
38	1977/09/24	-56nT	12	4-
39	1977/04/08	-55nT	27	5-
40	1977/10/29	-54nT	9	4-
41	1977/09/26	-53nT	18	5-
42	1977/10/20	-52nT	7	3
43	1977/10/15	-50nT	19	5-
44	1977/04/21	-50nT	12	4-
45	1977/09/28	-50nT	9	4-
46	1977/11/13	-49nT	26	5
47	1977/09/25	-49nT	10	3
48	1977/11/16	-48nT	14	4-
49	1977/08/06	-48nT	21	4+
50	1977/05/11	-47nT	24	5+

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