The run now known as the "Beast Quake" is a play called 17 Power. Essentially, everyone on the offensive line blocks down to the right, except for a pulling guard, who follows the fullback to the left, blocking linebackers and making space for the running back to follow through the frontside gap.
Or, as Lynch put it in an interview with NFL Films, "With Power, you runnin' straight downhill. You know where we comin', and we know where y'all gonna be lined up at. Now you just gotta stop me. I'm saying I'm better than you."
Facing second-and-10 and clinging to a four-point lead with 3:34 remaining against the Saints, the Seahawks are looking to bleed some clock and set up a manageable third down. They line up in an offset I-formation with Lynch and fullback Michael Robinson in the backfield. Tight end John Carlson is lined up outside left tackle Russell Okung, and wide receiver Ben Obomanu motions right to left, settling just outside Carlson. It's a run-heavy look, and the Saints respond by stacking eight men in the tackle box.
After the snap, things go pear-shaped quickly. The pulling guard, Mike Gibson, gets tangled up with Carlson as the two cross paths, leaving linebacker Scott Shanle unblocked as the ball carrier hits the hole. Shanle wraps Lynch up, but Lynch shrugs him off like a particularly heavy coat. (Danny Kelly, who regularly breaks down plays at Field Gulls, SB Nation's Seahawks blog, wrote to me: "Breaking a tackle in the open field is one thing, but running through a tackle like this when you're in a phone booth is a whole different feat.") Lynch slides to the right, where a hole in the line has opened up.
The hole is a result of defensive tackle Sedrick Ellis not containing the backside of the play. At the snap, Ellis -- lined up opposite Gibson and right tackle Sean Locklear -- keeps his eyes in the backfield and stunts over the top of the formation. He correctly guesses the hole that Lynch is going to hit -- only to find himself stacked behind Shanle, unable to make a play.

At this point, Gibson's early collision with Carlson becomes fortuitous: if Gibson had reached the hole to make a block on Shanle, Lynch likely would have found himself in the arms of Ellis. Instead, Shanle's tackle is broken, Ellis is out of position ... and Gibson rights himself and heads into the second level to lay a block on Tracy Porter, who will famously reappear in the play a few seconds later.
From there, it's all Beast Mode. Lynch breaks simultaneous arm tackles from Darren Sharper and Remi Ayodele. Jabari Greer launches himself at Lynch and slides off like a child flailing at his older brother. Porter hustles back into the picture to grab Lynch's shoulders, and Lynch responds with something that's less of a stiff-arm than a judo-like shove -- a cruel application of force that uses Porter's momentum against him and sends him turfward.
Lynch would later elaborate on the famous stiff-arm to NFL Films. "We almost was runnin' at top speed, so any kind of shove right there will throw a man off course. It's just a little baby stiff-arm." He smiles. "Yeah, a little baby stiff-arm."
Marshawn Lynch knows some mean-ass babies.
Lynch, slowed down by delivering the stiff-arm, is still 35 yards from the end zone, and his loss of momentum allows Saints and Seahawks alike to re-enter the play. On the telecast, Mike Mayock praises the hustle of Hasselbeck and Locklear to get downfield, but both narrowly avoid blocking defensive end Alex Brown in the back. Brown dives at Lynch at the sideline, but Lynch sees him coming and keeps his feet from getting tangled up.
"I'm just thinking, ‘What the hell just happened? Did this really just happen?'"
At the 10-yard line, Lynch cuts back to the center of the field. Safety Roman Harper is the last Saint with a chance at Lynch, but left guard Tyler Polumbus -- a 305-pound man who has sprinted 65 yards downfield -- delivers a block that makes Harper's effort fruitless.
Lynch: "I'm just thinking, ‘What the hell just happened? Did this really just happen?'"
It really happened: at least seven New Orleans defenders got their hands on Lynch, and none could tackle him. Future TV replays will avoid the angle that shows it, but Lynch dives into the end zone while grabbing his crotch.
As he told Chadiha, "That was the stamp. The statement. With all that shit, you gotta finish it off somehow."
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THE QUAKE