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Geomagnetic storm on 18 Apr 1951 (G4)

Max Kp8-G4

Ap66No. 12 in 1951

Consecutive G1+ days9

Ap rank473since 1932

Kp by 3-hour slot (UTC)

00–031o

03–061o

06–094+

09–127o

12–158-

15–186o

18–215o

21–245o

The days around it

Date	Max Kp	Ap	Level
15 Apr 1951	3o	9	–
16 Apr 1951	4-	7	–
17 Apr 1951	4-	10	–
18 Apr 1951	8-	66	G4
19 Apr 1951	5o	17	G1
20 Apr 1951	6+	41	G2
21 Apr 1951	6-	40	G2

Highest-Ap days of 1951

25 Sep 1951116

20 Sep 1951106

28 Oct 195198

17 Oct 195191

21 Sep 195188

22 Sep 195185

2 Jul 195182

16 Sep 195182

26 Sep 195173

2 May 195168

Dates and time slots are UTC. Kp is the 3-hourly planetary geomagnetic index (0–9); Ap is the daily average disturbance. G1–G5 follow the NOAA storm scale (Kp 5- and above counted as G1). Aurora visibility also depends on weather and location. The latest values are preliminary.

← 13 Mar 1951 1 May 1951 →

About this page

Max Kp 8-, Ap 66: No. 473 of 34,615 days since 1932 by Ap.