Back Éruption solaire de 1989 French Tempesta geomagnetica del marzo 1989 Italian 1989年3月の磁気嵐 Japanese Furtuna solară din martie 1989 Romanian Геомагнитная буря 13—14 марта 1989 года Russian Геомагнітна буря березня 1989 Ukrainian 1989年3月磁暴 Chinese
 Artist's depiction of solar wind striking Earth's magnetosphere (size and distance not to scale) | |
| Associated solar active region | |
|---|---|
| NOAA region no. | 5395 |
| Largest SXR flares | X15 |
| Geomagnetic storm | |
| Initial onset | 9 March 1989 |
| Dissipated | 13 March 1989 |
| Peak Kp-index | 9 |
| Peak Ap-index | 246 |
| Peak Dst | −589 nT |
| Impacts | Global communications blackouts; loss of power to the Hydro-Québec power grid |
Part of solar cycle 22 | |
The March 1989 geomagnetic storm occurred as part of severe to extreme solar storms during early to mid March 1989, the most notable being a geomagnetic storm that struck Earth on March 13. This geomagnetic storm caused a nine-hour outage of Hydro-Québec's electricity transmission system. The onset time was exceptionally rapid.[1] Other historically significant solar storms occurred later in 1989, during a very active period of solar cycle 22.
- ^ IEEE Spectrum (26 January 2012). "The Geomagnetic Storm of 1989". Archived from the original on 2021-12-20 – via YouTube.