What is a geomagnetic storm?

  • A major disturbance of Earth’s magnetosphere caused by a solar wind shock wave.
  • These storms result from significant adjustments in the geomagnetic field.
  • They are often associated with increased auroral activity.
  • Can last from hours to several days, depending on the intensity of the solar event.
  • Effects include disruptions in GPS, radio communications, and power grids.