| Subject: Michigan explosion without noise. |
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Date Posted: 02:27:44 12/11/04 Sat
From the SAGINAW NEWS (Michigan)Friday, December 10, 2004
Some likened it to noiseless thunder.
Others said they heard a boom, while still others suspected an earthquake.
Whatever it was that shook Saginaw on Thursday afternoon left many residents puzzled.
"I was on the phone with my uncle about 2 p.m. when I felt the house kind of shake," said Beverly J. Nothelfer, 54, who lives along Irving in Saginaw.
"It kind of felt like when thunder shakes the house, but I didn't hear anything. It was like an explosion without the noise."
Employees at Princing & Ewend, a public relations and marketing firm along Niagara next to the Holland Street Bridge in Saginaw, also were left shaken.
"I heard a boom, but louder than normal," said Andrea L. Fisher, 28, of Midland, president of the company.
"We're right next to the bridge and big trucks go over it all the time, and the big ones can cause a kind of rattle here. But this was louder than anything in the past. We heard it more than felt it.
"Our creative director, Greg Branch, came over from the other end of the building and asked, 'Did you guys feel that?' "
"I felt a vibration," Branch said. "Occasionally you get that if a double-trailer truck goes over the bridge and hits a bump. I even looked out the window to see the truck, but there wasn't any.
"I knew it wasn't an earthquake because of the noise."
Some folks old enough to remember sonic booms are wondering if an errant aircraft pushed across the sky too fast.
Branch said he's starting to believe that's what caused the excitement.
"It sounded a lot like it, but then I thought, 'Nah, we don't have (sonic booms) anymore.' "
Sonic booms result when objects move faster than the speed of sound -- about 760 mph, depending on the altitude. Sonic booms were known to break windows in homes and shake plaster loose. Congress outlawed them over land in the 1970s.
Experts are ruling out a temblor.
"Michigan has not had an earthquake," Carolyn C. Bell, spokesperson for the U.S. Geological Survey headquarters in Reston, Va., said Thursday.
The agency's nearest seismograph, at the University of Michigan in Ann Arbor, is sensitive enough to detect tremors well into Canada, she said
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