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2-point conversion generated biggest Seahawks quake ever

January 21, 2015
Seattle Seahawks' Jermaine Kearse celebrates after catching the game-winning touchdown during overtime of the NFL football NFC Championship game against the Green Bay Packers Sunday, Jan. 18, 2015, in Seattle. The Seahawks won 28-22 to advance to Super Bowl XLIX. (AP Photo/Jeff Chiu)

Seattle Seahawks’ Jermaine Kearse celebrates after catching the game-winning touchdown during overtime of the NFL football NFC Championship game against the Green Bay Packers Sunday, Jan. 18, 2015, in Seattle. The Seahawks won 28-22 to advance to Super Bowl XLIX. (AP Photo/Jeff Chiu)

SEATTLE (AP) — Earthquake experts with the Pacific Northwest Seismic Network have analyzed the CenturyLink Field shaking during the Seahawks’ win over the Packers in Sunday’s NFC title game.

The experts say the biggest event was caused by all the jumping and dancing that followed the touchdown and 2-point conversion as Seattle rallied at the end of regulation time.

The University of Washington’s Steve Malone calls it a “dance quake” generated by bouncing fans.

Malone says that dance quake was the biggest seismic signal associated with a Seahawks game — even bigger than the 2011 “beast quake” that followed a Marshawn Lynch touchdown run and originally drew the attention of earthquake trackers.

Other earthshaking events Sunday were Seattle’s fake field goal touchdown and the winning touchdown in overtime.

(Courtesy of the Pacific Northwest Seismic Network)

(Courtesy of the Pacific Northwest Seismic Network)