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Geomagnetic activity in April 1993
Mean Ap18.8No. 186 of 1138
G1+ days12
G3+ days2
Max Ap875 Apr 1993
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 4 Apr 1993 | 8- | 58 | G4 |
| 5 Apr 1993 | 7+ | 87 | G3 |
| 6 Apr 1993 | 5- | 14 | G1 |
| 8 Apr 1993 | 5o | 26 | G1 |
| 9 Apr 1993 | 6- | 28 | G2 |
| 12 Apr 1993 | 5+ | 16 | G1 |
| 13 Apr 1993 | 6- | 32 | G2 |
| 15 Apr 1993 | 5+ | 28 | G1 |
| 16 Apr 1993 | 5- | 16 | G1 |
| 20 Apr 1993 | 5o | 23 | G1 |
| 21 Apr 1993 | 6- | 33 | G2 |
| 22 Apr 1993 | 5o | 21 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| April 1992 | 11.2 | 5 | 0 |
| April 1993 | 18.8 | 12 | 2 |
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 18.8 in April 1993, No. 186 of 1138 months since 1932; 12 days reached G1 or higher.