QuoteAs expected, a coronal mass ejection hit Earth on Sept. 3rd at approximately 1200 UT (5 am PDT). The impact induced significant ground currents in the soil of northern Scandinavia and sparked bright auroras around the Arctic Circle.
http://www.spaceweather.com/ (http://www.spaceweather.com/)
There is more activity with in the next few days as well:
(http://www.swpc.noaa.gov/rt_plots/Kp.gif)
QuoteThe Estimated 3-hour Planetary Kp-index is derived at the NOAA Space Weather Prediction Center using data from the following ground-based magnetometers: Boulder, Colorado; Chambon la Foret, France; Fredericksburg, Virginia; Fresno, California; Hartland, UK; Newport, Washington; Sitka, Alaska. These data are made available thanks to the cooperative efforts between SWPC and data providers around the world, which currently includes the U.S. Geological Survey, the British Geological Survey, and the Institut de Physique du Globe de Paris
http://www.swpc.noaa.gov/rt_plots/kp_3d.html (http://www.swpc.noaa.gov/rt_plots/kp_3d.html)