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Geomagnetic storm on 4 May 1978 (G4)
Max Kp8-G4
Ap96No. 3 in 1978
Consecutive G1+ days5
Ap rank184since 1932
Kp by 3-hour slot (UTC)
7+
8-
7+
6+
7-
4+
5-
2-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 1 May 1978 | 8+ | 88 | G4 |
| 2 May 1978 | 7+ | 94 | G3 |
| 3 May 1978 | 7o | 83 | G3 |
| 4 May 1978 | 8- | 96 | G4 |
| 5 May 1978 | 4- | 7 | – |
| 6 May 1978 | 3- | 5 | – |
| 7 May 1978 | 3- | 7 | – |
Highest-Ap days of 1978
124
109
96
94
89
88
85
83
82
80
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 96: No. 184 of 34,615 days since 1932 by Ap.