TV News LIES

Monday, Jun 27th

Last update05:20:13 AM GMT

You are here News Energy Quake's jolts were double nuke plant's design

Quake's jolts were double nuke plant's design

E-mail Print PDF

North Anna nuclear plantThe 5.8-magnitude earthquake last month in Virginia caused about twice as much ground shaking as a nearby nuclear power plant was designed to withstand, according to a preliminary federal analysis.

Parts of the North Anna Power Station in Mineral, Va., 11 miles from its epicenter, endured jolts equal to 26% of the force of gravity (0.26g) from some of the vibrations unleashed by the quake, said Scott Burnell, spokesman of the Nuclear Regulatory Commission.

An NRC document says the reactors' containment structure was built to withstand 12% of the force of gravity (0.12g.) Dominion, the plant's operator, says parts of the plant can handle up to 0.18g.

"It's the things inside the buildings that may have been shaken more than the design called for," Burnell said, adding the buildings themselves appear to have been less affected. He said the analysis is based on a seismograph reading taken about 30 miles away by the U.S. Geological Survey.

Whatever the final numbers on shaking or ground motion, the plant withstood the jolts, Burnell said, indicating there's a "great deal" of safety margin. "That margin was certainly enough for North Anna this time."

Then "maybe you shouldn't rely on the margin," said Edwin Lyman at the Union of Concerned Scientists, a non-profit critical of nuclear energy. "The jury is still out," he said, on whether the plant was adequately designed.

The two reactors at the North Anna plant, which began operation in 1978 and 1980, have remained closed since the Aug. 23 quake. They automatically shut down after losing off-site power. Backup diesel generators kept their cores cool until electricity was restored several hours later.

More...


Most Recent Related Stories...


Nuclear reactor at Indian Point plant in N.Y. shut down again after leak found

Indian Point reactor leakOne of two reactor units at a nuclear power plant near New York City has been...

ExxonMobil tried to censor climate scientists to Congress during Bush era

Exxon tried to censorscientistsExxonMobil moved to squash a well-established congressional lecture series on climate science just nine days after...

North Dakota rig count up more than 10 percent

N Dakota rigging up ten percentNorth Dakota saw the number of rigs actively exploring for or producing oil and gas increase...

Portugal runs for four days straight on renewable energy alone

Portugal runs four days on renewable energyPortugal kept its lights on with renewable energy alone for four consecutive days last week in...
 
America's # 1 Enemy
Tee Shirt
& Help Support TvNewsLIES.org!
TVNL Tee Shirt
 
TVNL TOTE BAG
Conserve our Planet
& Help Support TvNewsLIES.org!
 
Get your 9/11 & Media
Deception Dollars
& Help Support TvNewsLIES.org!
 
The Loaded Deck
The First & the Best!
The Media & Bush Admin Exposed!