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Mysterious booms baffle officials in eastern Wis.
By CARRIE ANTLFINGER
Associated Press
MILWAUKEE (AP) - A series of mysterious underground booms have been rattling a small eastern Wisconsin city for at least two nights, baffling residents and local officials who were left stumped Tuesday after ruling out numerous theories, from earthquakes to water pressure problems.
The noises - described as rumbles of thunder, sonic booms or fireworks - were being reported in northeast Clintonville, about 140 miles northwest of Milwaukee, on Sunday night but quieted down at daybreak. The sounds started back up Monday night across a wider area and continued until about 5 a.m. Tuesday, said City Administrator Lisa Kuss.
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A seismic station near Clintonville has recorded unusual ground shaking since Sunday night. Tobin said such activity can be caused by quarrying, mining and heavy truck traffic, but since the city ruled out those sources -there are no mines or major construction in the area - the university and the Wisconsin Geological and Natural History Survey will likely take a closer look at the station's data.
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Authorities trying to track down the source found no gas in the sewers or problems with the city water pressure or wells, and nothing was found at an area landfill that might explain the rumbling, Kuss said. Engineers also checked a nearby dam and ruled it out, and there are no nearby industrial businesses or military operations making the noise, she said.
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"It's clearly not obvious to anyone involved what is going on," Kuss said, adding that city officials were encouraging any experts who may have a theory to contact them.
Full text:
http://www.kctv5.com/story/17202188/mysterious-booms-baffle-officials-in-eastern-wis
By CARRIE ANTLFINGER
Associated Press
MILWAUKEE (AP) - A series of mysterious underground booms have been rattling a small eastern Wisconsin city for at least two nights, baffling residents and local officials who were left stumped Tuesday after ruling out numerous theories, from earthquakes to water pressure problems.
The noises - described as rumbles of thunder, sonic booms or fireworks - were being reported in northeast Clintonville, about 140 miles northwest of Milwaukee, on Sunday night but quieted down at daybreak. The sounds started back up Monday night across a wider area and continued until about 5 a.m. Tuesday, said City Administrator Lisa Kuss.
...
A seismic station near Clintonville has recorded unusual ground shaking since Sunday night. Tobin said such activity can be caused by quarrying, mining and heavy truck traffic, but since the city ruled out those sources -there are no mines or major construction in the area - the university and the Wisconsin Geological and Natural History Survey will likely take a closer look at the station's data.
...
Authorities trying to track down the source found no gas in the sewers or problems with the city water pressure or wells, and nothing was found at an area landfill that might explain the rumbling, Kuss said. Engineers also checked a nearby dam and ruled it out, and there are no nearby industrial businesses or military operations making the noise, she said.
...
"It's clearly not obvious to anyone involved what is going on," Kuss said, adding that city officials were encouraging any experts who may have a theory to contact them.
Full text:
http://www.kctv5.com/story/17202188/mysterious-booms-baffle-officials-in-eastern-wis
