CME IMPACT, GEOMAGNETIC STORM : Arriving a little earlier than expected, a CME hit Earth's magnetic field on Oct. 2nd at approximately 0200 UT. The impact sparked a G2-class geomagnetic storm with auroras across Canada and several northern-tier US states. Alan Dyer sends this picture from Gleichen, Alberta:
THE INSTIGATING CME: The CME that hit Earth's magnetic field today left the sun on Sept. 30th, propelled by an erupting magnetic filament. SOHO photographed the CME at the start of its journey, racing away from the sun at 2 million mph (900 km/s):
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