Figure 8From: Assessing the hazard from geomagnetically induced currents to the entire high-voltage power network in SpainMaximum GICs due to a horizontal geoelectric field of 1Â V/km in the eastern direction. Data are shown in the form of circles, and the diameters are proportional to the flowing current. The red color denotes GICs flowing into Earth, and blue denotes those flowing into the grid.Back to article page