Geomagnetic Storms of 1954
31 geomagnetic storms of G1 or more began in 1954: 16 G1, 13 G2, 2 G3, 0 G4, 0 G5. The strongest began April 11, 1954 and reached Kp 7+, rank 352 of every storm since 1932.
By month
Every storm of 1954
Times are UT, when the first block at Kp 5 or more began.
| Began (UTC) | Level | Peak Kp | Hours | Highest daily Ap |
|---|---|---|---|---|
| Jan 2, 12:00 | G1 Minor | 5 | 3 | 22 |
| Jan 18, 21:00 | G1 Minor | 5 | 3 | 13 |
| Feb 15, 09:00 | G1 Minor | 5+ | 9 | 32 |
| Feb 17, 00:00 | G1 Minor | 5 | 3 | 27 |
| Feb 21, 15:00 | G2 Moderate | 6 | 15 | 36 |
| Feb 26, 09:00 | G2 Moderate | 6+ | 15 | 37 |
| Feb 27, 15:00 | G2 Moderate | 6- | 3 | 30 |
| Mar 14, 15:00 | G1 Minor | 5+ | 18 | 31 |
| Mar 18, 00:00 | G1 Minor | 5 | 3 | 21 |
| Mar 22, 18:00 | G2 Moderate | 6 | 9 | 42 |
| Mar 23, 18:00 | G2 Moderate | 6 | 6 | 42 |
| Apr 11, 18:00 | G3 Strong | 7+ | 15 | 56 |
| Apr 27, 00:00 | G1 Minor | 5 | 3 | 16 |
| Aug 22, 03:00 | G1 Minor | 5 | 3 | 17 |
| Aug 24, 12:00 | G1 Minor | 5 | 3 | 21 |
| Aug 27, 00:00 | G1 Minor | 5 | 3 | 14 |
| Sep 1, 21:00 | G2 Moderate | 6- | 6 | 27 |
| Sep 6, 18:00 | G2 Moderate | 6- | 3 | 21 |
| Sep 14, 03:00 | G2 Moderate | 6- | 12 | 31 |
| Sep 20, 15:00 | G3 Strong | 7- | 6 | 45 |
| Sep 28, 00:00 | G1 Minor | 5 | 3 | 17 |
| Sep 29, 18:00 | G1 Minor | 5+ | 6 | 30 |
| Oct 1, 03:00 | G2 Moderate | 6+ | 15 | 44 |
| Oct 3, 21:00 | G2 Moderate | 6 | 6 | 28 |
| Oct 6, 15:00 | G1 Minor | 5+ | 3 | 22 |
| Oct 18, 09:00 | G2 Moderate | 6- | 9 | 40 |
| Oct 24, 00:00 | G2 Moderate | 6 | 30 | 45 |
| Oct 27, 09:00 | G1 Minor | 5 | 3 | 17 |
| Oct 30, 03:00 | G1 Minor | 5 | 3 | 17 |
| Nov 2, 00:00 | G2 Moderate | 6 | 3 | 26 |
| Dec 27, 12:00 | G1 Minor | 5 | 3 | 17 |
More
Sources
Kp and ap from GFZ Helmholtz Centre for Geosciences, Geomagnetic Observatory Niemegk, licensed CC BY 4.0: Matzka, J., Stolle, C., Yamazaki, Y., Bronkalla, O. and Morschhauser, A., 2021, The geomagnetic Kp index and derived indices of geomagnetic activity, Space Weather, doi:10.1029/2020SW002641; data doi:10.5880/Kp.0001. Storms, levels and aurora reach worked out by WeatherOverTime from those values and NOAA’s space weather scales. Definitive through August 31, 2026; later values are preliminary. Rebuilt 2026-09-24.