How big, you ask?
In the magnitude 1-to-2 range, according to John Vidale, a professor at the University of Washington and the director of the Pacific Northwest Seismic Network.
Vidale said his staff recorded five separate seismic events during Seattle's 34-7 pasting of New Orleans -- a match-up of two of the NFL's top teams.
The most intense episode came late in the first quarter, when Seahawks defensive lineman Michael Bennett returned a Saints fumble 22 yards for a touchdown.
Seattle fans did this once before. In 2011, a Marshawn Lynch touchdown shook the earthquake recording station too.
And in 1988, college fans at Louisiana State University rocked the bayou in a come-from-behind victory over 4th-ranked Auburn, registering on the campus seismograph.
From CNN
