1973Year 9 of solar cycle 20

Geomagnetic storms of 1973

1973 had 73 geomagnetic storms reaching Kp 5 or more, 10 of them strong (G3 or above); the strongest reached Kp 8+. Every storm with its dates, and the Kp of every day of the year.

73Every storm

10G3–G5

Kp 8+Peak Kp

116days at Kp 5 or more

The year day by day

the day's highest Kp

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Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Kp 0–3Kp 4Kp 5 · G1Kp 6 · G2Kp 7 · G3Kp 8 · G4Kp 9 · G5

Every storm · 1973

9Jan

7Feb

6Mar

6Apr

7May

8Jun

5Jul

4Aug

4Sep

9Oct

6Nov

2Dec

Date	Level	Peak Kp	Hours at Kp 5 or more	ap
5 – 6 January 1973	G1	Kp 5	6	48
8 January 1973	G1	Kp 5	3	48
10 January 1973	G1	Kp 5−	3	39
10 – 11 January 1973	G1	Kp 5	6	48
12 January 1973	G1	Kp 5	3	48
20 January 1973	G2	Kp 6	6	80
21 January 1973	G1	Kp 5	9	48
24 – 25 January 1973	G1	Kp 5	6	48
27 – 28 January 1973	G2	Kp 6−	15	67
9 February 1973	G1	Kp 5−	3	39
17 February 1973	G1	Kp 5−	3	39
21 February 1973	G1	Kp 5−	3	39
21 – 22 February 1973	G3	Kp 7+	12	154
22 – 24 February 1973	G2	Kp 6+	48	94
25 – 26 February 1973	G1	Kp 5	12	48
26 – 28 February 1973	G2	Kp 6	21	80
1 – 2 March 1973	G1	Kp 5+	21	56
6 March 1973	G2	Kp 6−	6	67
18 – 26 March 1973	G3	Kp 7	156	132
26 March 1973	G2	Kp 6+	3	94
27 March 1973	G1	Kp 5−	3	39
31 March 1973	G2	Kp 6	9	80
1 – 3 April 1973	G4	Kp 8+	33	236
11 April 1973	G1	Kp 5−	6	39
13 – 14 April 1973	G4	Kp 8−	27	179
16 – 23 April 1973	G2	Kp 6+	129	94
26 – 27 April 1973	G2	Kp 6−	15	67
28 – 29 April 1973	G2	Kp 6	24	80
1 May 1973	G1	Kp 5−	6	39
13 – 15 May 1973	G4	Kp 8−	30	179
15 – 16 May 1973	G1	Kp 5+	12	56
16 – 17 May 1973	G2	Kp 6	9	80
18 May 1973	G1	Kp 5−	3	39
21 May 1973	G3	Kp 7	12	132
22 May 1973	G1	Kp 5	3	48
2 June 1973	G1	Kp 5−	3	39
10 – 11 June 1973	G2	Kp 6+	15	94
12 – 13 June 1973	G1	Kp 5−	6	39
18 June 1973	G1	Kp 5+	3	56
19 June 1973	G1	Kp 5+	15	56
24 June 1973	G1	Kp 5	9	48
28 – 29 June 1973	G2	Kp 6+	15	94
30 June 1973	G1	Kp 5−	9	39
15 July 1973	G1	Kp 5−	3	39
15 – 16 July 1973	G1	Kp 5+	9	56
26 – 27 July 1973	G1	Kp 5+	15	56
27 July 1973	G1	Kp 5	3	48
31 July 1973	G1	Kp 5	9	48
23 – 24 August 1973	G2	Kp 6	18	80
25 August 1973	G1	Kp 5	12	48
27 August 1973	G1	Kp 5−	3	39
27 – 28 August 1973	G1	Kp 5	9	48
9 September 1973	G4	Kp 8−	6	179
10 September 1973	G2	Kp 6	6	80
22 – 24 September 1973	G3	Kp 7	24	132
25 – 26 September 1973	G2	Kp 6−	12	67
2 – 3 October 1973	G3	Kp 7+	24	154
10 October 1973	G1	Kp 5	3	48
12 October 1973	G1	Kp 5−	3	39
16 October 1973	G1	Kp 5+	9	56
17 October 1973	G1	Kp 5−	3	39
18 October 1973	G1	Kp 5	3	48
21 – 22 October 1973	G1	Kp 5+	15	56
28 – 30 October 1973	G3	Kp 7	30	132
31 October 1973	G1	Kp 5	6	48
4 November 1973	G1	Kp 5	3	48
7 November 1973	G2	Kp 6−	6	67
17 November 1973	G1	Kp 5	3	48
18 November 1973	G1	Kp 5−	3	39
21 November 1973	G2	Kp 6−	6	67
24 – 25 November 1973	G2	Kp 6−	24	67
4 – 5 December 1973	G2	Kp 6	9	80
20 – 22 December 1973	G1	Kp 5+	15	56