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Geomagnetic storm on 13 Oct 1974 (G3)
Max Kp7oG3
Ap86No. 3 in 1974
Consecutive G1+ days9
Ap rank250since 1932
Kp by 3-hour slot (UTC)
6-
7o
7-
6+
7-
6+
5+
4o
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 10 Oct 1974 | 3+ | 10 | – |
| 11 Oct 1974 | 3o | 6 | – |
| 12 Oct 1974 | 5- | 17 | G1 |
| 13 Oct 1974 | 7o | 86 | G3 |
| 14 Oct 1974 | 6o | 30 | G2 |
| 15 Oct 1974 | 6o | 50 | G2 |
| 16 Oct 1974 | 7o | 68 | G3 |
Highest-Ap days of 1974
130
88
86
82
74
73
70
68
68
54
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.
About this page
Max Kp 7o, Ap 86: No. 250 of 34,615 days since 1932 by Ap.