Geomagnetic Storms of 2002
39 geomagnetic storms of G1 or more began in 2002: 18 G1, 13 G2, 7 G3, 1 G4, 0 G5. The strongest began May 23, 2002 and reached Kp 8+, rank 127 of every storm since 1932.
By month
Every storm of 2002
Times are UT, when the first block at Kp 5 or more began.
| Began (UTC) | Level | Peak Kp | Hours | Highest daily Ap |
|---|---|---|---|---|
| Jan 10, 15:00 | G1 Minor | 5 | 15 | 27 |
| Feb 5, 18:00 | G1 Minor | 5 | 3 | 23 |
| Feb 28, 21:00 | G2 Moderate | 6 | 3 | 25 |
| Mar 18, 12:00 | G1 Minor | 5+ | 18 | 19 |
| Mar 24, 00:00 | G2 Moderate | 6 | 18 | 45 |
| Apr 17, 09:00 | G3 Strong | 7+ | 27 | 63 |
| Apr 19, 09:00 | G3 Strong | 7+ | 33 | 71 |
| Apr 23, 06:00 | G2 Moderate | 6 | 3 | 27 |
| May 11, 09:00 | G3 Strong | 7- | 12 | 49 |
| May 14, 18:00 | G1 Minor | 5 | 3 | 29 |
| May 18, 18:00 | G1 Minor | 5+ | 3 | 14 |
| May 23, 09:00 | G4 Severe | 8+ | 12 | 78 |
| Jul 17, 15:00 | G1 Minor | 5 | 3 | 20 |
| Aug 1, 12:00 | G2 Moderate | 6 | 18 | 42 |
| Aug 2, 21:00 | G2 Moderate | 6- | 3 | 42 |
| Aug 15, 18:00 | G1 Minor | 5+ | 6 | 22 |
| Aug 18, 18:00 | G1 Minor | 5+ | 15 | 30 |
| Aug 19, 21:00 | G1 Minor | 5 | 3 | 30 |
| Aug 20, 18:00 | G2 Moderate | 6+ | 15 | 32 |
| Sep 4, 03:00 | G2 Moderate | 6+ | 9 | 42 |
| Sep 7, 15:00 | G3 Strong | 7+ | 15 | 57 |
| Sep 11, 09:00 | G1 Minor | 5 | 3 | 26 |
| Sep 30, 09:00 | G1 Minor | 5 | 6 | 28 |
| Oct 1, 09:00 | G3 Strong | 7+ | 24 | 67 |
| Oct 3, 00:00 | G2 Moderate | 6 | 3 | 45 |
| Oct 3, 15:00 | G3 Strong | 7+ | 30 | 64 |
| Oct 5, 15:00 | G1 Minor | 5+ | 3 | 28 |
| Oct 7, 03:00 | G2 Moderate | 6 | 27 | 48 |
| Oct 16, 18:00 | G2 Moderate | 6- | 3 | 19 |
| Oct 24, 00:00 | G2 Moderate | 6+ | 33 | 63 |
| Oct 27, 21:00 | G1 Minor | 5 | 3 | 25 |
| Oct 30, 06:00 | G1 Minor | 5 | 3 | 16 |
| Nov 2, 18:00 | G1 Minor | 5 | 3 | 28 |
| Nov 3, 15:00 | G1 Minor | 5+ | 3 | 35 |
| Nov 10, 06:00 | G1 Minor | 5 | 3 | 17 |
| Nov 20, 18:00 | G3 Strong | 7- | 18 | 50 |
| Nov 26, 21:00 | G1 Minor | 5 | 9 | 24 |
| Dec 21, 00:00 | G2 Moderate | 6- | 6 | 21 |
| Dec 27, 03:00 | G2 Moderate | 6 | 3 | 37 |
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.