During the first quarter of Sunday's 49ers-Seahawks game, noise levels of 136.6 decibels were recorded on the sideline at CenturyLink Field, and with officials on hand from Guinness World Records, that gave Seahawks fans a record for "Loudest crowd roar at a sports stadium."
Ex-Seahawk Joe Tafoya, who along with a fan group called Volume 12 led the effort to break the record, wrote on Twitter, "Congratulations Seahawks 12th man & Centurylink field! We are officially the loudest stadium in the world!"
The record roar was measured in the second half after fans had already set it once in earlier in the game. The record was initially broken late in the first quarter when Michael Bennett sacked Colin Kaepernick, registering decibel levels of 131.9. That play happened not long after play had resumed following the lightning delay.
The hour-long layoff apparently did nothing to dampen fans' spirits.
"The crowd was unbelievable," said quarterback Russell Wilson, who was unaware of the results of the record attempt. "I'm not sure if we got the record or not, but it sure did feel like it. The energy in that stadium, it makes a big difference for us."
The previous Guinness record was set in 2011 at a soccer game in Istanbul between rivals Galatasary and Fenerbahce, with the crowd recording a roar of 131.76 decibels.
Seahawks left tackle Russell Okung left the game in the second quarter with a foot injury and did not return. After being carted off, Okung did return to the sideline to test out the injury, but the Seahawks ultimately decided to keep him out of the game. Paul McQuistan, who started the game at left guard, played left tackle in Okung's absence with James Carpenter taking over at guard.
Seahawks coach Pete Carroll said they do not yet know the severity of the injury. Carroll said that was the only serious injury concern, though he did mention minor injuries to Malcolm Smith (hamstring), Spencer Ware (ankle) and Richard Sherman (groin).
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