Basics - Geomagnetism

Geomagnetism is the study of Earth's magnetic field, which is used as a basis for:

  • Navigation
  • surveying and mapping
  • mineral exploration
  • probing the Earth's crust and deep interior
  • understanding solar-terrestrial relationships.

Discover more about:

Earth's Magnetic Field

The Earth's magnetic field is generated by electric currents deep in the interior and high above the surface of the planet.

Magnetic Storms

During magnetic storms huge electric currents flow in Earth's ionosphere.


Auroras are commonly seen in areas around Earth's polar regions.