Mysterious Clintonville booms are quiet - WAOW - Newsline 9, Wausau News, Weather, Sports

Mysterious Clintonville booms are quiet

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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.

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