CLINTONVILLE -- The mysterious booming noises heard in Clintonville apparently have stopped, for now. The city 40 miles west of Green Bay says there have been no additional reports of unusual activity since about 1:30 p.m. Monday.
Shortly before 2 a.m., residents flooded the Clintonville Police Dispatch with calls reporting explosions, rattling, vibrations and homes shaking. About 150 calls were received between 1:45 a.m. and 11 a.m.
The city contacted geologists from the University of Wisconsin-Madison, but says the noises and vibrations felt in Clintonville were not typical of earthquake activity.
A seismic station in Shiocton had recorded unusual ground shaking in the past 18 hours. But that recorded activity probably won't help the city determine what has been happening.