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Geomagnetic storm on 7 Oct 1940 (G3)

Max Kp7oG3

Ap61No. 11 in 1940

Consecutive G1+ days2

Ap rank571since 1932

Kp by 3-hour slot (UTC)

00–034o

03–064+

06–096-

09–125-

12–156-

15–185+

18–217o

21–246-

The days around it

Date	Max Kp	Ap	Level
4 Oct 1940	4+	10	–
5 Oct 1940	3+	8	–
6 Oct 1940	4o	12	–
7 Oct 1940	7o	61	G3
8 Oct 1940	7-	49	G3
9 Oct 1940	4o	8	–
10 Oct 1940	3o	7	–

Highest-Ap days of 1940

30 Mar 1940189

24 Mar 1940187

25 Mar 1940184

31 Mar 1940128

25 Jun 1940126

29 Mar 1940100

3 Apr 194098

24 May 194078

25 Apr 194070

1 Apr 194066

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.

← 1 Oct 1940 8 Oct 1940 →

About this page

Max Kp 7o, Ap 61: No. 571 of 34,615 days since 1932 by Ap.