Home > Space > M-3 Class Flare Erupts – Minor Effects Reported in Europe

M-3 Class Flare Erupts – Minor Effects Reported in Europe

September 5, 2011

Space Weather.com reports: (video click here) On Sunday morning at 1145 UT, an active region on the sun’s western limb unleashed a strong M3-class solar flare. NASA’s Solar Dynamics Observatory recorded the flash of extreme ultraviolet radiation. Although the blast site was not directly facing Earth, radiation from the explosion nevertheless ionized Earth’s upper atmosphere. This altered the propagation of radio signals around Europe, where it was high-noon at the time of the flare. “I detected a sharp change in signal levels from two radio stations on the VLF band,” reports Rob Stammes of Lofoten, Norway. More radio anmolaies were detected by Dave Gradwell in Ireland (data) and a team led by Valter Giuliani in Italy (data).

In addition to the UV flash, the explosion also hurled a CME into space: SOHO movie. The cloud is not heading for Earth, so no auroras will result from this particular event.

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