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Geomagnetic activity in October 1970
Mean Ap12.5No. 549 of 1138
G1+ days7
G3+ days1
Max Ap3918 Oct 1970
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 4 Oct 1970 | 6- | 25 | G2 |
| 12 Oct 1970 | 5+ | 16 | G1 |
| 16 Oct 1970 | 6o | 37 | G2 |
| 17 Oct 1970 | 6o | 34 | G2 |
| 18 Oct 1970 | 7- | 39 | G3 |
| 22 Oct 1970 | 5- | 18 | G1 |
| 23 Oct 1970 | 5o | 29 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| October 1969 | 8.7 | 1 | 0 |
| October 1970 | 12.5 | 7 | 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.
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About this page
Mean Ap 12.5 in October 1970, No. 549 of 1138 months since 1932; 7 days reached G1 or higher.