California hearing strange booms like Wisconsin

California hearing strange booms like Wisconsin

August 25, 2012

Source Of Loud Boom In Foothills A Mystery

sacramento.cbslocal

People from all over El Dorado County say they’re hearing loud booms several times a week, but there are many theories on what is causing them.

“I thought it was thunder,” said one person.

“It’s definitely not thunder; too consistent. I thought it was just mining,” said another person.

“I always considered them to be sonic booms from flying aircraft’s for years,” said Loring Brunius, owner of Sierra Rock Diamond Quarry.

People who live near Pleasant Valley say their days have been interrupted by loud booms, shaking the floor beneath them.

“You can feel it in the ground, no question about it. But no one’s been able to figure out why,” said Pleasant Valley resident Peter O’Grady. “I tend to hear somewhere between four to six of these things during the weekdays usually between 11 p.m. and 2 p.m

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