Maximum Kp index on October 4, 2025
Kp = 4
Maximum Kp index on October 4, 2025
Geomagnetic disturbances were observed
Kp = 4
Geomagnetic storms in Phoenix on October 4, 2025
Time zone — UTC−07 (Phoenix | 33.45 N 112.07 W)
Geomagnetic storms in Phoenix in October 2025
Time zone — UTC−07 (Phoenix | 33.45 N 112.07 W)
Geomagnetic activity indices on October 4, 2025
| Geomagnetic index Ap | 20 |
|---|---|
| Solar radio flux F10.7 | 158 |