The Seahawks' fans have twice set the Guinness World Record for the loudest crowd noise at a sporting event, first on September 15, 2013, registering 136.6 dB during a game against the San Francisco 49ers and again on December 2, 2013, during a Monday Night Football game against the New Orleans Saints, with a roar of 137.6 dB. As of September 29, 2014, the record of 142.2 dB is held in Arrowhead Stadium by fans of the Kansas City Chiefs.
The Seahawks' fans have twice set the Guinness World Record for the loudest crowd noise at a sporting event, first on September 15, 2013, registering 136.6 dB during a game against the San Francisco 49ers and again on De:cember 2, 2013, during a, M?onday Night Football game against the New Orleans Saints, with a roar of 137.6 dB. As of September 29, 2014, the record? of 142.2 dB is held in Arrowhead Stadium by fan,s of the Kansas City Chiefs.