The current record for outdoor crowd noise at a sports stadium (137.5 decibels) was set on Oct. 13 by Kansas City Chiefs fans at Arrowhead Stadium.

According to CBS Sacramento, the 124.9 decibels Kings fans generated is equivalent to the noise of a police siren.

<blockquote class="twitter-tweet"><p>Fans of the <a href="https://twitter.com/SacramentoKings">@sacramentokings</a> beat the average police siren with 124.9 decibels of noise <a href="http://t.co/sUI0tB6fkt">http://t.co/sUI0tB6fkt</a></p>&mdash; CBS Sacramento (@CBSSacramento) <a href="https://twitter.com/CBSSacramento/statuses/401564482365059072">November 16, 2013</a></blockquote>

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Update:

Kings fans outdid themselves in the same game. At the start of the fourth quarter, decibel levels reached 126, which is now the loudest Guinness indoor crowd roar.

<blockquote class="twitter-tweet"><p>How about that Sacramento! We just set the Guinness World Record for the loudest indoor arena! <a href="https://twitter.com/search?q=%23LLTK&amp;src=hash">#LLTK</a></p>&mdash; Kevin Johnson (@KJ_MayorJohnson) <a href="https://twitter.com/KJ_MayorJohnson/statuses/401561418710802432">November 16, 2013</a></blockquote>

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<blockquote class="twitter-tweet"><p>Congrats <a href="https://twitter.com/SacramentoKings">@SacramentoKings</a> fans on beating the world record! <a href="https://twitter.com/search?q=%23hereweroar&amp;src=hash">#hereweroar</a></p>&mdash; City of Sacramento (@TheCityofSac) <a href="https://twitter.com/TheCityofSac/statuses/401587762236633088">November 16, 2013</a></blockquote>

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