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Post Info TOPIC: March 1989 geomagnetic storm
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March 1989 geomagnetic storm
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The March 1989 geomagnetic storm was a severe geomagnetic storm that caused the collapse of Hydro-Québec's electricity transmission system. It occurred during solar cycle 22.
The geomagnetic storm causing this event was itself the result of a coronal mass ejection on March 9, 1989.
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