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UPDATE: Booms and Vibrations In Clintonville

UPDATED Thursday, April 26, 2012 --- 7:55 a.m.

CLINTONVILLE, Wis. (AP) -- The four seismometers installed around Clintonville to help investigate the booms and rumblings have been removed because it's been quiet there.

Residents started reporting the sounds March 18 and experts detected a 1.5-magnitude earthquake about two days later. The reports started to die down until another big boom over a week later.

The Michigan Technological University lent the seismometers to Clintonville starting on March 30 and that same day they confirmed a .1 magnitude earthquake. There have been a just few minor reports since then.

The U.S. Geological Survey has determined the events were a swarm of small earthquakes, which are not unusual across the nation.

City Administrator Lisa Kuss says if the noises start up again, they will reevaluate whether to start monitoring again.

Copyright 2012. The Associated Press.

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UPDATED Thursday, April 12, 2012 --- 6:50 a.m.

CLINTONVILLE, Wis. (AP) -- The reports of booming in Clintonville have quieted down.

Residents started reporting the sounds and shaking March 18 and experts detected a 1.5-magnitude earthquake about two days later. The reports started to die down until another big boom over a week later. There have been a few reports since then.

Four seismometers have been installed and so far confirmed a .1 magnitude earthquake March 30.

City administrator Lisa Kuss said Wednesday police have only received a handful of calls recently.

U.S. Geological Survey Geophysicist John Bellini says he's still comparing their data with resident reports but haven't found anything substantial.

He suspects the events are a swarm of small earthquakes -- which are not unusual across the nation, can last up to a few months and can be sporadic.

Copyright 2012. The Associated Press.

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UPDATED Monday, April 2, 2012 --- 11:20 a.m.

From NBC15's News Partner WLUK-TV in Green Bay:

CLINTONVILLE - No booms were reported overnight in Clintonville, but we are getting to hear what people in the city have been hearing for a few weeks.

Clintonville City Administrator Lisa Kuss sent us an audio recording of what the booms sound like. It was captured for the city by a student from Madison Area Technical college, Brian Sullivan. This boom was recorded on March 24.

Click on the ABOVE link marked: VIDEO: Clintonville Boom: Sound Recorded 11am news 4/2/2012

The U.S. Geological Survey confirmed that a 1.5 magnitude earthquake hit the Waupaca County city on March 20, but booms have been heard before and after March 20.

The city is still asking people to call the police department if they feel or hear anything. That number is (715) 823-3117. The USGS is also asking people to report strange noises at its website.

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UPDATED Friday, March 30 --- 11:10 a.m.

CLINTONVILLE, Wis. (AP) -- Clintonville now has four seismometers and four specialized sound sensors to help experts better understand the rumbling and booms over the last couple weeks.

City Administrator Lisa Kuss said Friday officials from Michigan Technological University borrowed the equipment to them temporarily. She says the readings will be fed to the National Earthquake Information Center through cell towers or the Internet.

Residents started reporting the sounds and shaking March 18 and experts detected a 1.5-magnitude earthquake about two days later. The reports started to die down until another big boom Tuesday night. There have been few reports since then.

Geophysicist John Bellini has said he suspects the events are a swarm of small earthquakes -- which are not unusual across the nation and can last up to a few months.

Copyright 2012. The Associated Press.

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UPDATED Thursday, March 29, 2012 --- 7:50 a.m.

MILWAUKEE (AP) -- The U.S. Geological Survey is asking Clintonville residents to report any booming and rumblings to their website.

Geological officials said Wednesday they are considering putting a seismometer in Clintonville, after booms and rumblings shook residents again Tuesday night. A 1.5-magnitude earthquake was detected last week and since then residents have reported less intense booms less frequently up until Tuesday night.

Geological Survey spokeswoman Heidi Koontz says residents reporting the events to them helps seismologists and geophysicists better understand what's going on. City Administrator Lisa Kuss says she still wants residents to inform police at the nonemergency number.

The website is: http://earthquake.usgs.gov/earthquakes/dyfi/

Copyright 2012. The Associated Press.

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UPDATED: Wednesday, March 28, 2012 --- 8:00 p.m.

Clintonville residents rocked by arbitrary small earthquakes for more than a week felt another strong vibration late Tuesday evening.

In less than one hour the local police department received more than 60 calls from concerned residents. So far there are no reports of significant damage.

City Administrator Lisa Kuss is now asking the U.S. Geological Survey for equipment to measure the quakes. She says the nearest machinery, about 15 miles away, is not sensitive enough to evaluate the sound of the booms in Clintonville. U.S.G.S. staff tell her they are busy evaluating unusual earthquakes in other parts of the country and may not have equipment available.

Meanwhile, city officials are embracing the attention caused by the mysterious quakes. On Thursday they well begin selling "I survived the 1.5" t-shirts, a reference to the magnitude of a quake felt early on Tuesday, March 20. Visit the link below to see the shirts.

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UPDATED Wednesday, March 28, 2012 --- 11:00 a.m.

CLINTONVILLE, Wis. (AP) -- Residents are shaken by booms again in a Wisconsin city where a small earthquake was recorded last week.

Clintonville police say they received 65 calls Tuesday night between 10:35 and 11:40. City Administrator Lisa Kuss says residents reported some of the loudest booms yet. The reports had decreased since a flurry of calls early last week.

The U.S. Geological Survey said a 1.5-magnitude earthquake struck March 20 in Clintonville.

Geophysicist John Bellini says he looked at the nearby seismometers and was unable to detect anything Tuesday night. He says they are considering putting a seismometer in Clintonville to get a better reading of potential activity.

He says it's likely a swarm of small earthquakes, which happen several times a year across the country.

Copyright 2012. The Associated Press.

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UPDATED Wednesday, March 28, 2012 --- 6:15 a.m.

CLINTONVILLE, Wis. (AP) -- Residents are shaken by booms once again in a Wisconsin city where a small earthquake was recorded last week.

Clintonville police say they received 65 calls Tuesday night between 10:35 and 11:40 from residents who experienced the booming. The city has been relatively quiet lately after the booms awakened residents for several days early last week.

The U.S. Geological Survey said a 1.5-magnitude earthquake struck March 20 in Clintonville, a town of about 4,600 people about 40 miles west of Green Bay.

City administrator Lisa Kuss says she has again contacted the Geological Survey about the latest booms.

Geologists say earthquakes can generate seismic energy that moves through rock at thousands of miles per hour, producing a sonic boom when the waves come to the surface.

Copyright 2012. The Associated Press.

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UPDATED: Saturday, March 24, 2012 --- 7:20p.m.

CLINTONVILLE, Wis. (AP) -- The mayor of an eastern Wisconsin city that's been dealing with scores of unexplained booms plans to order T-shirts commemorating a minor earthquake that might be linked to the mystery.

Clintonville Mayor Judy Magee is planning to order T-shirts that say, "I Survived the 1.5." That's a reference to the 1.5-magnitude earthquake that federal geologists confirm struck Tuesday just after midnight.

The tiny quake could explain some of the mysterious booms, described as sounding like thunder or fireworks. However, the bulk of the booms occurred in the pre-dawn hours Sunday and Monday.

City Administrator Lisa Kuss says the shirts are intended to show unity, not to make light of the situation. She tells the Shawano Leader (http://bit.ly/GKoPVC ) that Clintonville is proud to be a great town with charm and personality.

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Information from: Shawano Leader, http://www.shawanoleader.com

Copyright 2012. The Associated Press.

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UPDATED Saturday, March 24, 2012 --- 11:45 a.m.

From WLUK-TV in Green Bay:

CLINTONVILLE - The booming and shaking returned to Clintonville Friday night.

We spoke with Clintonville police Saturday morning, they said there were ten reports of booming and shaking between 8:30 - 10:30 Friday night from residents. They also received two reports after midnight.

The Waupaca County city has been rocked by mysterious shakes and sounds for much of the week.

The US Geological Survey said a 1.5 magnitude earthquake hit early Tuesday morning.

Geological experts say loud booming noises can accompany earthquakes.

City officials say residents are safe.

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UPDATED Friday, March 23, 2012 --- 3:45 p.m.

From WLUK-TV in Green Bay:

CLINTONVILLE - Now that the mystery of Clintonville’s strange booms and vibrations appears to be solved, city leaders are scaling back their efforts to document the disturbances.

People in Clintonville reported hearing the noises beginning Sunday night. They reappeared Monday and Tuesday nights. On Thursday, the U.S. Geological Survey determined a swarm of microearthquakes had hit the city, the strongest a magnitude 1.5 quake just after midnight Tuesday.

City administrator Lisa Kuss says the monitoring system it had considered renting to record possible tremors has been sent back to Milwaukee.

The city will decide on Monday whether further monitoring action should be taken. Kuss says only eight people phoned in about noises or rumblings overnight on Thursday. She requests people continue to call in over the weekend, as her staff continues to plot on maps where it’s occurring.

Anyone who hears strange noises is asked to call police at (715) 823-3117.

Meanwhile, insurance agents say they've been swamped with calls from concerned residents on earthquake coverage.

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UPDATED Thursday, March 22, 2012 --- 6:15 p.m.

A press conference was held Thursday evening in Clintonville.

As we've reported, the U.S. Geological Survey said today a 1.5 magnitude earthquake struck Tuesday just after midnight.

According to city leaders, a swarm of several small earthquakes in a short amount of time caused the mysterious vibrations/sounds.

Clintonville City Administrator Lisa Kuss says this solves the city's mystery. But some residents voiced frustration at the press conference. They say this doesn't explain the vibrations/sounds they felt before Tuesday.

Coverage from the Associated Press:

MILWAUKEE (AP) -- An official for an eastern Wisconsin city plagued this week by a series of unexplained booming sounds says the mystery can be attributed to a small early-morning earthquake.

Clintonville City Administrator Lisa Kuss told the community Thursday "the mystery is solved." She says the rumbling can be explained by a 1.5 magnitude earthquake that struck Tuesday and was confirmed by federal geologists Thursday.

She says representatives from the U.S. Geological Survey describe the cause as a swarm of several small earthquakes in a very short time.

While USGS geophysicist Paul Caruso tells The Associated Press that loud booming noises have been known to accompany earthquakes, he says he's skeptical that such a small earthquake would produce the loud booms that shook many residents awake.

Copyright 2012. T he Associated Press.

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UPDATED Thursday, March 22, 2012 --- 3:20 p.m.

As experts try to figure out the source of those mysterious sounds/vibrations in Clintonville, the U.S. Geological Survey now says a 1.5 magnitude quake was registered in Clintonville on Tuesday morning at 12:15:57.

But University of Wisconsin Professor Clifford Thurber wouldn't call it an earthquake, just yet. He says a number of sources could have registered the seismic disturbance.

Clintonville's city administrator says a news conference will be held at the high school tonight at 6 p.m. where more information will be released.

Stay with NBC15 and NBC15.com for continuing coverage on this developing story.

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UPDATED Thursday, March 22, 2012 --- 8:15 a.m.

CLINTONVILLE, Wis. (AP) -- The eastern Wisconsin community where intermittent booming has kept some residents up at night will hire an engineering firm to explore the cause of the racket.

Clintonville administrator Lisa Kuss said Thursday the engineering firm will install four ground seismology monitors around the city to determine whether there's an epicenter to the noises that seem to be underground. Ruekert & Mielke, of Waukesha, will analyze the data once engineers get a good reading. Kuss says it's not known how long that will take. She says the city will spend up to $7,000 on the effort.

Kuss says a handful of calls early Thursday to police reported some minor booms, unlike previous nights when dozens of calls were placed to dispatchers about explosion-like sounds that roused residents from their sleep.

Copyright 2012. The Associated Press.

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UPDATED: Thursday, March 22, 2012 -- 7:03 a.m.

CLINTONVILLE, Wis. (AP) -- If the number of phone calls to police is any indication, it was a relatively quiet night in the eastern Wisconsin community of Clintonville, where intermittent booms have awakened residents for several nights.

Police received several calls early Thursday morning, compared to more than 100 overnight Sunday to Monday when the racket began.

About 300 people attended a public meeting Wednesday night in a local high school auditorium to get an update on the situation. City Administrator Lisa Kuss assured residents that officials are doing everything they can to determine the source of the booming.

Officials have checked water, sewer and gas lines, contacted the military about any exercises in the area, reviewed permits for mining explosives, in addition to testing methane levels at the local landfill.

Copyright 2012. The Associated Press.

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UPDATED: Thursday, March 22, 2012 -- 5:11 a.m.

Clintonville Police officials say they've received four more calls from residents who have heard the mysterious booming sounds. The calls came in this morning between 1 and 4 a.m.

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UPDATED Wednesday, March 21, 2012 --- 11:55 a.m.

CLINTONVILLE, Wis. (AP) -- Officials in an eastern Wisconsin city are trying to record a series of mysterious booming sounds that have roused residents from bed in the past few days, but their attempts have so far come up empty.

The city of Clintonville set up audio and video recorders overnight Wednesday but didn't capture anything. There was at least one loud boom at 5 a.m.

City administrator Lisa Kuss says most theories involving manmade causes have been ruled out. She says the city is planning to bring in some sort of vibration-detection devices to try to determine where the epicenter is.

The booms started Sunday. Residents describe them as sounding like thunder, fireworks or someone slamming a heavy door.

The city will hold a meeting Wednesday evening to update residents on the investigation.

Copyright 2012. The Associated Press.

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UPDATED Wednesday, March 21, 2012 --- 9:05 a.m.

CLINTONVILLE, Wis. (AP) -- Mysterious underground booms have resonated again in the eastern Wisconsin city of Clintonville.

Police dispatcher Tabitha Schoen says it was a quiet night in Clintonville until shortly after 5 a.m. when about 20 calls came in from residents who felt and heard the booms.

The booms, which have been compared to rumbles of thunder, sonic booms or fireworks, rattled homes and awakened some residents Sunday and Monday nights.

Authorities are at a loss to explain.

Seismologists have recorded unusual ground shaking in the area, similar to that caused by quarrying, mining and heavy truck traffic. But the city has ruled out such activities as possible sources of the disturbance.

A meeting about the mysterious noise is scheduled Wednesday night at the high school in Clintonville.

Copyright 2012. The Associated Press.

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UPDATED Wednesday, March 21, 2012 --- 6:00 a.m.

CLINTONVILLE, Wis. (AP) -- Mysterious underground booms resumed early Wednesday in the eastern Wisconsin community of Clintonville after a quiet night.

The noise awakened some residents Sunday and Monday night. After checking numerous theories about what may have caused the noise, authorities are still at a loss to explain the origin.

Police dispatcher Tabitha Schoen says it was a quiet night in Clintonville until shortly after 5 a.m. when about 20 calls came in from residents who experienced the booms. They've been described as rumbles of thunder, sonic booms or fireworks and have rattled houses.

A meeting about the mysterious noise is scheduled Wednesday night at the high school in Clintonville.

Copyright 2012. The Associated Press.

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UPDATED Tuesday, March 20, 2012 --- 4:40 p.m.

From WLUK-TV: CLINTONVILLE - Clintonville city officials have scheduled a public meeting to discuss mysterious noises and shaking heard and felt recently.

The meeting is scheduled for 6 p.m. Wednesday at the Clintonville High School Auditorium. City officials will be on hand to provide updates and answer the public’s questions.

The booms were first heard Sunday night and returned Monday night and early Tuesday morning.

City officials have ruled out several possible sources of the noises: were water and sewer systems, elevated gas levels, area blasting or mining, nearby closed landfill and dam structures, industrial businesses, military operations and geological occurrences such as isostatic rebound and cryoseism.

Anyone in Clintonville who hears strange booms is asked to call the police department at (715) 823-3117.

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UPDATED Tuesday, March 20, 2012 --- 9:25 a.m.

CLINTONVILLE, Wis. (AP) -- Sleep is interrupted again for some residents in the eastern Wisconsin city of Clintonville where a series of mysterious booms continued for a second night in a row.

City Administrator Lisa Kuss says it was mostly quiet Monday after a series of rumbles the night before until they started again around 8 p.m. She says they continued throughout night until about 5 a.m. Tuesday.

The noises had been concentrated in the northeast part of the city and overnight Tuesday the reports moved slightly south and west but still within city limits.

Local officials have checked gas lines, sewers, water pressure and consulted seismologists, but have come up empty-handed.

She says it's still coming from underground. They next plan to check the well pumps to make sure they are functioning.

Copyright 2012. The Associated Press.

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UPDATED Tuesday, March 20, 2012 --- 7:45 a.m.

CLINTONVILLE, Wis. (AP) -- Sleep is interrupted again for some residents in the eastern Wisconsin city of Clintonville where a series of mysterious booms continued Monday night.

Police say they received nearly 100 phone calls throughout the night about the loud booms. Dispatcher Karen Wegenke says most residents called about 12:15 a.m., 1:20 a.m., 2:20 a.m. and a few calls about 5:08 a.m. Tuesday.

Authorities in Clintonville, about 40 miles west of Green Bay, are at a loss to explain the noise, which some have described as a jackhammer sound. Dozens of calls also came in to dispatchers early Monday.

Local officials have checked gas lines, sewers, water pressure and consulted seismologists, but have come up empty-handed.

Copyright 2012. The Associated Press.

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UPDATED Monday, March 19, 2012 --- 4:35 p.m.

CLINTONVILLE, Wis. (AP) -- Authorities are investigating a series of booming noises and vibrations that seemed to come from underground in Clintonville.

City Administrator Lisa Kuss says residents reported hearing booms that sounded like distant thunder and that made their homes vibrate first at around 1:45 a.m. Monday, then again at 5:30 a.m. and 7:15 a.m. She says there were infrequent reports the rest of the morning with the last around 11:30 a.m.

She says there were no earthquakes. Authorities found no gas in the sewers or problems with the city water pressure. They also found nothing at an area landfill that might explain it.

Officials are checking with geologists to see if something underground might be shifting, possibly due to the unusually warm weather.

The reports seem to be in the northeast part of the city.

Copyright 2012. The Associated Press.

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Posted Monday, March 19, 2012 --- 9:35 a.m.

CLINTONVILLE, Wis. (AP) -- Clintonville officials are investigating what caused a series of vibrations and explosion sounds.

City Administrator Lisa Kuss says residents started reporting the sounds around 1:45 a.m. Monday and again around 5:30 a.m. and 7:15 a.m.

She said Monday they've checked for possible gas in the sewers, earthquakes, the city's water pressure and the nearby landfill. So far they've been unable to find anything to explain it.

She says the reports seem to be clustered in the northeast part of the city.

She says officials are patrolling the streets and have found no damage and no one is hurt. She says some residents reported that they've heard similar sounds within the last two weeks but it didn't cause as much concern.

Copyright 2012. The Associated Press.


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