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Geomagnetic storm on 15 Mar 1948 (G4)

Max Kp8+G4

Ap140No. 2 in 1948

Consecutive G1+ days5

Ap rank60since 1932

Kp by 3-hour slot (UTC)

00–036-

03–068+

06–098o

09–127+

12–156+

15–187o

18–218-

21–245o

The days around it

Date	Max Kp	Ap	Level
12 Mar 1948	5-	23	G1
13 Mar 1948	5+	39	G1
14 Mar 1948	5+	40	G1
15 Mar 1948	8+	140	G4
16 Mar 1948	4o	9	–
17 Mar 1948	4o	12	–
18 Mar 1948	3-	6	–

Highest-Ap days of 1948

8 Aug 1948146

15 Mar 1948140

19 Oct 194894

18 Oct 194886

10 Aug 194874

16 May 194872

21 Oct 194867

2 Nov 194856

15 Oct 194851

22 Apr 194850

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.

← 11 Nov 1947 21 Apr 1948 →

About this page

Max Kp 8+, Ap 140: No. 60 of 34,615 days since 1932 by Ap.