Global geomagnetic indices

Global geomagnetic indices Kp and Dst. Planetary K indices (Kp) derived by the GFZ Helmoltz Center in Potsdam (GFZ-Potsdam) and graphic provided by the National Oceanic and Atmospheric Administration's (NOAA) Space Weather Prediction Center (SWPC). Storm disturbance time (Dst) data and graphic from the Kyoto World Data Center for Geomagnetism (WDC-Kyoto).

Planetary K index

Activity level Calm Disturbed Storm
Physical measure Kp < 4 Kp = 4 Kp > 4

Dst index