Top 50 geomagnetic storms of 1973

On this page you will find an overview of the strongest geomagnetic storms of 1973 together with links to more information in our archive. The Kp-values on this page are the official, finalized Kp-values from the GFZ in Potsdam, Germany. The Ap-index provides a daily geomagnetic activity average. This page is updated daily. Times are in UTC.

		Ap	00-03h	03-06h	06-09h	09-12h	12-15h	15-18h	18-21h	21-00h	Kp max
1	1973/04/01	91	4	3-	3	4	5+	8-	8+	8-	8+
2	1973/05/14	80	8-	7-	6	5+	6-	4+	6	5-	8-
3	1973/04/14	57	4	5+	8-	5+	6-	5	3-	2+	8-
4	1973/09/09	44	1+	1	2	4	4+	4	6-	8-	8-
5	1973/02/21	49	5-	3+	1+	2	2	5	7+	7-	7+
6	1973/10/03	48	5	7+	6-	4+	5-	4-	2	3+	7+
7	1973/04/13	46	1+	4+	5-	6-	7+	5	2	3-	7+
8	1973/10/29	86	6	6-	5+	6+	7-	6	7	6-	7
9	1973/03/19	82	4	3+	5	7-	6+	6+	7	7	7
10	1973/09/23	63	5	5	4+	7	7-	4	6	4	7
11	1973/04/02	54	7	6	4-	6-	5-	5	4+	3-	7
12	1973/05/21	48	4	5	7	6+	5-	3-	2-	4-	7
13	1973/03/20	80	5+	6-	6-	7-	6-	6-	7-	6+	7-
14	1973/04/16	60	4	5-	6-	6	6+	6-	6-	5-	6+
15	1973/02/22	46	6+	2	3-	4-	4	4+	6+	6	6+
16	1973/06/29	41	4+	5-	6+	4+	5	5-	4	3	6+
17	1973/06/10	33	2+	3-	2	3+	2	4-	6+	6+	6+
18	1973/03/26	32	5-	4	4	2	1+	4	6+	4	6+
19	1973/04/29	59	6	6	6-	5-	6	4	6-	4+	6
20	1973/03/21	58	4+	5+	6	5+	5	6	5+	5+	6
21	1973/02/24	54	4+	5	5+	5-	5+	5+	6	6-	6
22	1973/03/22	53	5	5	6-	5+	6	4	5	5	6
23	1973/04/17	51	6-	6	5+	5-	5	4+	5	5-	6
24	1973/08/24	46	6	5	5+	6-	5+	4-	3	4-	6
25	1973/04/22	44	5	5+	6	4	4+	5+	3+	4+	6
26	1973/02/27	44	4+	6	4-	4-	4	6	5	5-	6
27	1973/04/19	42	5-	5-	5-	4	4	3+	6-	6	6
28	1973/05/16	33	5+	4	5-	3+	4-	3	2	6	6
29	1973/03/31	33	2+	4	3	1	3	5+	6	5+	6
30	1973/12/04	29	4-	3+	3	3+	3-	4	5-	6	6
31	1973/01/20	29	6	5	3-	3+	3+	2+	3	4+	6
32	1973/09/10	27	3-	2-	3-	4-	4+	5-	6	3	6
33	1973/03/23	50	5	4+	5	5	5-	6-	5	6-	6-
34	1973/03/24	49	5+	5-	4	5	5+	5	5	6-	6-
35	1973/02/23	48	5-	5+	5	4+	5-	6-	5+	5	6-
36	1973/04/20	46	6-	5	5-	4	4-	5+	6-	5-	6-
37	1973/11/25	42	6-	6-	5+	4-	5-	4+	4+	4-	6-
38	1973/01/28	33	5	6-	4-	4-	4	4+	4-	4	6-
39	1973/11/07	28	3+	4-	6-	4-	3-	2+	5	4	6-
40	1973/10/30	28	6-	4	4	3-	4-	4-	3+	4	6-
41	1973/04/26	28	4-	4-	3	2	4-	4	6-	5-	6-
42	1973/03/06	28	3	4	4+	3+	6-	5	2-	2	6-
43	1973/09/25	27	3+	3	3+	2+	4-	3-	6-	5+	6-
44	1973/11/21	23	3	3-	2	2+	2+	4	6-	5-	6-
45	1973/03/25	50	5	5+	5	5	5+	5+	5-	5	5+
46	1973/04/18	46	5	5	5+	5+	4	5+	5-	5-	5+
47	1973/04/21	42	5+	5	5	4+	4+	5-	5	4+	5+
48	1973/06/19	38	5+	5-	5	4-	4-	3+	5+	5-	5+
49	1973/10/21	37	5-	4	3	4+	5	4+	5+	5	5+
50	1973/05/15	37	5-	5-	4	3+	4+	4+	5+	5+	5+

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