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 said 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.