On this page you will find an overview of the strongest geomagnetic storms of 2015 together with links to more information in our archive. Storms are ranked by the Disturbance storm-time index (Dst) that is designed to measure the magnetic signature of magnetospheric currents observed in the equatorial regions. The Dst index is provided by the World Data Center for geomagnetism in Kyoto.
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| Último evento clase X | 08/12/2025 | X1.1 |
| Último evento clase M | 12/12/2025 | M1.1 |
| Últimas tormentas geomagnéticas | 12/12/2025 | Kp5 (G1) |
| Días sin manchas | |
|---|---|
| Último día sin manchas | 08/06/2022 |
| Promedio de manchas solares mensuales | |
|---|---|
| noviembre 2025 | 91.8 -22.8 |
| diciembre 2025 | 144.3 +52.5 |
| Last 30 days | 107.5 +8.8 |