Kp Index

This is a measure of how disturbed Earth's magnetic field is .Each bar is a 3-hour average of the level of disturbances from dozens of magnetic observatories across the world. The most severe storms have Kp values of 8 or 9 on this scale.

These disturbances correlate with spectacular aurora sightings, and with disturbances to the operations of satellites as well as electrical power grids and pipeline corrosion rates on the ground.

Back to Real-time Impacts Monitor