- A December 19 shockwave could have caused a G1 geomagnetic storm.
- The storm was projected to cause minor power grid fluctuations and disrupt satellite services.
- Auroras might also have been seen in Michigan and Maine, US.
Geomagnetic storm expected as shockwave blasts into Earth’s magnetosphere. According to Space Weather, the mystery shockwave that burst into Earth’s magnetic field on December 19 could have triggered a modest G1 class geomagnetic storm. The potential storm was projected to cause minor power grid fluctuations as well as to interrupt various satellite services such as mobile devices and GPS systems. Auroras might also be seen in Michigan and Maine.
According to the US National Oceanic and Atmospheric Administration (NOAA), a geomagnetic storm is a major disturbance of Earth’s magnetosphere that occurs when there is an especially efficient flow of energy from the solar wind into the space environment around Earth.
The magnetosphere is our planet’s protective shield, formed by the magnetic field that protects us from harmful radiation. The magnetosphere, according to specialists, is a region of space surrounding an astronomical object in which charged particles are impacted by the magnetic field of that object.
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