The Beast Quake was a National Football League (NFL) touchdown scored by Seattle Seahawks running back Marshawn Lynch against the New Orleans Saints during a 2010–11 NFC Wild Card playoff game.

Occurring in the fourth quarter while Seattle was up by four points, Lynch rushed for 67 yards and broke nine tackles to score a touchdown, which secured the Seahawks' eventual 41–36 victory.

The play's name comes from Lynch's nickname "Beast Mode" and the subsequent celebration of Seahawks fans registering on a nearby seismograph.

Left guard Tyler Polumbus and center Chris Spencer were to team up on defensive tackle Remi Ayodele and, ideally, push past him to block weak-side linebacker Scott Shanle.

Robinson would push ahead and block New Orleans middle linebacker Jonathan Vilma, and Gibson would be free to lead Lynch and deal with any unblocked defenders.

Polumbus and Spencer were able to turn Ayodele away, but neither was able to get off his block and challenge Shanle, who correctly read the pulling guard and filled the gap.

Already celebrating, Lynch leapt backwards into the endzone, with his right arm holding the ball aloft and his left hand grabbing his crotch, for the touchdown.

[5] It was later determined that crowd activity and noise was so great during Lynch's game-clinching touchdown run that a nearby Pacific Northwest Seismic Network station registered a small tremor, M=2 located at Qwest Field.

In 2012, the NFL revealed that the Saints put bounties on several Seahawks players during this game, including Hasselbeck, Lynch, and Williams.

According to Jackie Caplan-Auerbach, a seismologist at Western Washington University, the shaking of the ground on both July 22 and 23 nights was more than "twice as hard" of the 2011 Seahawks game.