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Geomagnetic storm on 8 Oct 1991 (G3)

Max Kp7-G3

Ap41No. 51 in 1991

Consecutive G1+ days3

Ap rank1,525since 1932

Kp by 3-hour slot (UTC)

00–034-

03–064o

06–095-

09–125-

12–154+

15–185-

18–217-

21–243+

The days around it

Date	Max Kp	Ap	Level
5 Oct 1991	4o	15	–
6 Oct 1991	5+	23	G1
7 Oct 1991	6-	32	G2
8 Oct 1991	7-	41	G3
9 Oct 1991	4+	14	–
10 Oct 1991	5+	30	G1
11 Oct 1991	3+	12	–

Highest-Ap days of 1991

5 Jun 1991196

24 Mar 1991161

13 Jul 1991134

25 Mar 1991130

29 Oct 1991128

13 Jun 1991120

10 Jun 1991119

9 Nov 1991119

9 Jul 1991117

26 Mar 1991114

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 1991 28 Oct 1991 →

About this page

Max Kp 7-, Ap 41: No. 1,525 of 34,615 days since 1932 by Ap.