Geomagnetic Storms in September, 2017
10 storms ↑ MAX: Kp 8 ↓ MIN: Kp 1
10 storms ↑ MAX: Kp 8 ↓ MIN: Kp 1
In September 2017, 10 geomagnetic storms were recorded; the strongest was Kp 8 on September 7, 2017. The longest run of consecutive active days was 2 (14 Sep–15 Sep).
Most powerful Geomagnetic Storms in September 2017
| Date | Class | Level | Duration |
|---|---|---|---|
| September 7, 2017 | Kp 8 | Severe (G4) | 24 h |
| September 27, 2017 | Kp 7 | Strong (G3) | 15 h |
| September 14, 2017 | Kp 6 | Moderate (G2) | 15 h |
| September 15, 2017 | Kp 6 | Moderate (G2) | 9 h |
| September 2, 2017 | Kp 5 | Minor (G1) | 3 h |
| September 4, 2017 | Kp 5 | Minor (G1) | 3 h |
| September 12, 2017 | Kp 5 | Minor (G1) | 3 h |
| September 18, 2017 | Kp 5 | Minor (G1) | 3 h |
| September 27, 2017 | Kp 5 | Minor (G1) | 3 h |
| September 28, 2017 | Kp 5 | Minor (G1) | 3 h |