Last updated on April 19, 2014 at 13:20 EDT
Rapidly Expanding Solar Quake
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Rapidly Expanding "Solar Quake"

March 31, 2003
A rapidly expanding "solar quake" on the Sun’s surface depicted here by the Michelson Doppler Imager (MDI). It immediately followed a solar flare on 1996 July 6 and spread out more than 100,000 km at the solar surface. Scientists have shown that solar flares produce seismic waves, and gigantic seismic quakes, in the Sun's interior. They have tracked these seismic waves and found that "sun-quakes" closely resemble earthquakes on our planet.