http://wattsupwiththat.com/2010/07/27/spacequakes/
Quote:
A THEMIS map of plasma flows during a spacequake. The axes are labeled in Earth radii, so each swirl is about the size of Earth.
“When plasma jets hit the inner magnetosphere, vortices with opposite sense of rotation appear and reappear on either side of the plasma jet,” explains Rumi Nakamura of the Space Research Institute in Austria, a co-author of the study. "We believe the vortices can generate substantial electrical currents in the near-Earth environment". Acting together, vortices and spacequakes could have a noticeable effect on Earth. The tails of vortices may funnel particles into Earth’s atmosphere, sparking auroras and making waves of ionization that disturb radio communications and GPS. By tugging on surface magnetic fields, spacequakes generate currents in the very ground we walk on. Ground current surges can have profound consequences, in extreme cases bringing down power grids over a wide area.
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"Spacequake! Vortices, Tunnels, Electric Current, Twisting Pairs, Great Tugging Tornadoes!" heheh
http://www.google.com.au/images?q=bi...current+aurora
http://www.thefullwiki.org/Birkeland_current