Mysterious noises and booms, unexplained shaking. Something’s going on in Clintonville, Wisconsin, but nobody seems to know what it is.
The sounds — variously described as rattling pipes, clanging metal, thunder or firecrackers — have continued on and off since early Sunday night in just one part of the small town of 4,600, located about 180 miles northeast of Madison.
Authorities in Clintonville say they’re looking into unexplained noises and shaking felt around the city Sunday night and early Monday morning.
Police dispatchers say around 9:30 Sunday night, people started reporting explosion-like sounds from underground shaking their homes. Police officers in the area said the sounds are like loud bangs with shaking.
The physical shaking so far seems to be in about an eight-block radius in the northeast part of the city.
The most calls came in just before 3:00 a.m., but City Administrator Lisa Kuss tells Action 2 News the noises then tapered off.
The last report of the earth shaking was at 8:45 Monday morning by the city administrator.
Kuss says crews have checked the underground water and gas lines, but nothing unusual has been found. Water pressure is normal and no natural gas has been detected. Some of the reports said the noises were like underground pipes rattling.
No damage has been reported, and no one was evacuated.
Kuss says the next step is for officials to meet and map the reports of the noises to look for any pattern or any other details that might indicate what had been happening.
She says local officials will also talk with officials in Madison to see if there is a geological explanation, even the possibility the warm weather had caused something underground to shift.
Update March 22, 2012:
Update March 23, 2012
4 more booms felt this morning:
The Waukesha engineering firm Ruekert & Mielke will install ground seismology monitors in four places around the town late Thursday or early Friday, Clintonville administrator Lisa Kuss said. “The purpose is trying to determine some sort of epicenter to the event,” Kuss said. “If you can do that, then you can focus on how deep it is.”