Home › Geomagnetic history › 1975
Geomagnetic storm on 7 Jan 1975 (G4)
Max Kp8-G4
Ap44No. 7 in 1975
Consecutive G1+ days3
Ap rank1,277since 1932
Kp by 3-hour slot (UTC)
8-
5+
5o
3+
3+
3-
2+
3-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 4 Jan 1975 | 5o | 32 | G1 |
| 5 Jan 1975 | 4+ | 27 | – |
| 6 Jan 1975 | 6+ | 26 | G2 |
| 7 Jan 1975 | 8- | 44 | G4 |
| 8 Jan 1975 | 5+ | 36 | G1 |
| 9 Jan 1975 | 3- | 7 | – |
| 10 Jan 1975 | 3o | 6 | – |
Highest-Ap days of 1975
80
65
53
52
50
45
44
41
38
38
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 8-, Ap 44: No. 1,277 of 34,615 days since 1932 by Ap.