Geomagnetically induced currents (GIC)

This is the GIC data page of FMI mostly intended for expert use. FMI has co-operated with Fingrid Oyj and Gasum Oy since 1970's to model and measure GIC in the Finnish high-voltage power system (Fingrid) and in the Finnish natural gas pipeline network (Gasum).

Use the navigation bar on the left hand side for plots of pipeline GIC.

FMI space weather servers:
Regional Warning Centre Finland
Geomagnetic activity nowcast
EURISGIC nowcast

Contact person: Ari Viljanen (at

Updated: 17 Jan 2023