 Geomagnetically induced current

Geomagnetically Induced Currents (GIC) are electrical currents that are induced in electrical power systems and other conductive structures due to variations in the Earth's magnetic field, particularly during geomagnetic storms. These storms are often caused by solar activities such as solar flares and coronal mass ejections, which release charged particles into space that interact with the Earth's magnetosphere. When these geomagnetic disturbances occur, they can cause fluctuations in the Earth’s magnetic field.