CLINTONVILLE - City officials in Clintonville say they will ask the U.S. Geological Survey to install seismic monitoring devices in the city.
The pending request comes after a slew of phone calls to the police department Tuesday night.
Clintonville has been plagued by loud booming noises and ground vibrations since late Sunday, March 18th.
The USGS said a swarm of micro earthquakes hit the city, with a magnitude 1.5 quake being registered at 12:15 a.m. on March 20th
The booms and shaking appeared to have subsided by early this week, but Clintonville was booming and quaking again Tuesday night.
Clintonville police say about 65 phone calls came in reporting hearing three to four loud booms.
Police say the majority of the calls came in between 10:30 p.m and 11:40 p.m.
Some residents reported shaking in their homes. No damage was reported.
City officials say many of the callers said the noises seemed to be coming from the northeast part of the city. That is the same area where the noises and vibrations seem to have started late Sunday, March 18th.
But some residents say Tuesday night's noises were louder than last week's.
"This one was extremely loud," said Gerald Smith, a retired art teacher who lives in the northeast area of the city. "It almost sounded like a car accident. You know, boom!"
City Administrator Lisa Kuss says shortly after Clintonville police starting ringing her phone Tuesday night, she was on the phone with the U.S. Geological Survey.
"We immediately called the USGS so that they would have the ability to start tracking information," said Kuss.
However, there wasn't much to track.
In a phone interview with the U.S. Geological Survey Wednesday, geophysicist John Bellin says unlike Tuesday's confirmed 1.5 magnitude earthquake, the science organization's instruments didn't pick up any seismic activity in the area Tuesday night.
"About 12 miles away, that's the closest station and there's nothing on it or any of the other closest stations, from last night," said Bellin.
Bellin says loud, booming noises are common with small earthquakes when sound waves break the sound barrier.
However, Bellin says Clintonville could have experienced another earthquake Tuesday, even though the equipment didn't register anything.
"It's just that the one that we did record was large enough to record for several stations because of the location," said Bellin.
Kuss says the city has sent a formal letter to the U.S. Geological Survey for help in monitoring the situation in Clintonville.
"We are going to request that they look at installing some sort of seismic monitoring devices, right here in Clintonville, as opposed to relying on data that's coming from monitors that are quite a distance away," said Kuss.
Bellin tells FOX 11 that the closest seismic monitoring station is about 12 miles away from Clintonville.
There has been a lot of speculation about what is causing the noises and vibrations in the city of nearly 4,600 people. As the U.S. Geological Survey and the city continue to monitor the data that's available, some experts have other opinions.
"We don't really know anything about faults buried under Clintonville, there's no bedrock on the surface. We don't have good enough sub-surface data," said University of Wisconsin-Green Bay geoscience professor Steve Dutch. "So, (an earthquake is) possible, but calling it an earthquake is just giving it a label, it really doesn't tell us why it's happening."
Dutch says since the reports of noises and vibrations are so localized, and not happening in other parts of Clintonville or surrounding communities, he thinks the noises and vibrations could be caused by natural, geological changes in the water table, or thermal stresses in the city's water system.
Dutch says the only way to get to the bottom of the issue is to specifically monitor Clintonville for the noises and vibrations.
"Most likely it would take having a series of instruments in the area to hear the sounds," said Dutch.
That is an opinion that Bellin shares.
"Most likely, the other (events were) too small to record," said Bellin of the continued reports of noises and vibrations since last Tuesday's confirmed quake. "Maybe if we are to get some closer (monitoring) stations, we still might be able to record some of the other (events)."
However, Dutch says there is a catch.
He says there is the possibility that when – even if – the seismic instruments arrive in Clintonville and are installed, the noises and vibrations could stop.
The city asks residents to call Clintonville police to report the noises in order to determine where the events are coming from at (715) 823-3117.
The victim in a weekend shooting at an Appleton night club is being kept alive on life support so his family can donate his organs.
There was enough snow Monday to make driving a challenge, including one deadly crash in the Fox Cities.
For 11 seasons, Blaise Winter played defensive end in the NFL. Three of those years were with the green and gold. Now, the man who overcame numerous health issues is being honored for his work.
A 68-year-old man is dead after a multi-vehicle crash in Neenah.
A Fond du Lac standoff involving shots fired at some area police officers is over.
A Grand Chute firefighter has died in a car crash.