krichard2011

Seahawks fans cause small quake during Saints game

John Vidale, director of the Pacific Northwest Seismic Network, said fans get the oval stadium moving back and forth by stomping their feet and jumping up and down. “It’s sort of what you see when a car rocks back and forth,” said Vidale, also a University of Washington earth and space sciences professor.

Vidale said a small quake wasn't all that surprising in the stadium, which is built on pilings dug through soft ground in earthquake country.

Structural engineers who plan buildings in Seattle often do so with room for movement, so when a natural earthquake happens the buildings aren't so stiff that they crack and crumble.

Vidale watched the game from his office to compare seismic reports with game action because he wondered if there would be a repeat of the 2011 “Beast Quake,” when Marshawn Lynch ran for a 67-yard, fourth quarter touchdown as Seattle upset the Saints to advance to the second round of the playoffs.

After the 2011 quake, Vidale looked at the whole season and found that that one Lynch run shook the stadium more than any other moment during that season.

He said it’s possible quakes occur in stadiums in other cities, but he suspects Seattle’s stadium is more flexible than most and may flow with the fans more.

“People unconsciously get the stadium moving, sort of like the wave,” he said.

Seattle structural engineer John Hooper said similar quakes can happen anywhere a large number of people are moving in unison, but the difference in Seattle is that there were instruments nearby to record the quake and people were paying attention.

The same thing could happen next weekend in San Francisco, when the Seahawks play the NFC West-rival 49ers, said Hooper, director of earthquake engineering at Magnusson Klemencic Associates.

But he also acknowledged Seahawks fans are unique.

“They’re very enthusiastic and it shows,” Hooper said.

Seattle fans also made record noise Monday, setting the Guinness World Record for loudest outdoor sports stadium noise at 137.6 decibels.
____

Online:

Seismic reading from Monday’s game: http://pnsn.org/seismogram/current/kdk

Copyright 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

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個人觀點:
還...頗有趣的新聞...
美國西雅圖的一場美式足球賽觀眾太HIGH
HIGH出芮氏規模1~2的小地震
這則新聞底下還有附上臨近地震儀的計錄資料
在台灣似乎還沒有見過這種新聞...
話說這個情況台灣有可能發生嗎0.0

此新聞轉自:http://www.washingtonpost.com/na ... 16b976b2_story.html

toby

真的嗎？之前聽說有網友發起類似的活動，但最後地震儀甚麼地震也沒有測到!:L

typhoonman

不知道把這個人工地震轉成動能變成能源好不好，能幫地球省下更多資源，健康環保呀!

五湖四海

我女兒跟太太都挺胖的，當他們在二樓做運動時，樓下的震度可能也不下於二級:funk:

甜心