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Geomagnetic activity in November 1974
Mean Ap17.6No. 226 of 1138
G1+ days9
G3+ days1
Max Ap7012 Nov 1974
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 8 Nov 1974 | 6- | 21 | G2 |
| 9 Nov 1974 | 6- | 39 | G2 |
| 11 Nov 1974 | 7o | 48 | G3 |
| 12 Nov 1974 | 6+ | 70 | G2 |
| 13 Nov 1974 | 5o | 36 | G1 |
| 14 Nov 1974 | 6- | 38 | G2 |
| 20 Nov 1974 | 5- | 22 | G1 |
| 21 Nov 1974 | 5- | 24 | G1 |
| 24 Nov 1974 | 5o | 26 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| November 1973 | 12.0 | 7 | 0 |
| November 1974 | 17.6 | 9 | 1 |
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
Mean Ap 17.6 in November 1974, No. 226 of 1138 months since 1932; 9 days reached G1 or higher.