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Geomagnetic activity in April 2014
Mean Ap8.0No. 939 of 1138
G1+ days2
G3+ days0
Max Ap2220 Apr 2014
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 12 Apr 2014 | 5- | 20 | G1 |
| 20 Apr 2014 | 5o | 22 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| April 2013 | 5.4 | 2 | 0 |
| April 2014 | 8.0 | 2 | 0 |
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 8.0 in April 2014, No. 939 of 1138 months since 1932; 2 days reached G1 or higher.