The most extensive list of historical GIC events until 1991 is given in the paper by D.H. Boteler, R.J. Pirjola and H. Nevanlinna: The effects of geomagnetic disturbances on electrical systems at the earth's surface, Adv. Space Res., 22, 17-27, 1998. Many of these events are also described on the space weather site of the Natural Resources Canada.

List of GIC disturbances since 1992.

We have derived a simple regional indicator of GIC activity ("DB index"). Based on this, we have produced lists of the most severe GIC storms since October 1982 in northern Europe.

GIC Now!: Nowcasting GIC activity in Finland.
COST 724/WG 3