Solar Cycle 22 was September 1986-August 1996. "During March 1989, a severe geomagnetic storm caused the collapse of Hydro-Québec's electricity transmission system. The geomagnetic storm causing this event was itself the result of a Coronal Mass Ejection on March 9, 1989.A few days before, on March 6, 1989, a very large X15 solar flare also occurred.At 2:44 am on March 13, 1989, a severe geomagnetic storm struck Earth. The storm began on Earth with extremely intense auroras at the poles. The aurora could be seen as far south as Texas. As this occurred during the Cold War, many worried that a nuclear first-strike might be in progress."

"In August 1989, another geomagnetic storm affected microchips, leading to a halt of all trading on Toronto's stock market. This geomagnetic storm was caused by a very large X20 solar flare on August 16, 1989, which was even stronger than the X15"