USGS confirms 1.5 magnitude earthquake in Clintonville
Updated: Thursday, 22 Mar 2012, 5:21 PM CDT
Published : Thursday, 22 Mar 2012, 3:15 PM CDT
Ben Krumholz, FOX 11 News
CLINTONVILLE - Things were quiet in Clintonville last night and today with the exception of a bombshell announcement.
The United States Geological Survey this afternoon confirmed a micro earthquake hit the Waupaca County community earlier this week.
This afternoon's earthquake announcement could bring officials a step closer to solving the mystery booms and shakes in Clintonville.
Meanwhile, residents hope the recent stint of quiet means the end of the unusual activity.
The rumblings were first heard and felt on Sunday night. They intensified early Monday morning and continued on Tuesday. Few calls have come in since Wednesday morning.
Overall, Clintonville police dispatch has answered more than 600 calls about the mysterious booms.
The City of Clintonville is holding a news conference tonight to discuss the new information. It will be at the high school at 6 p.m. It is open to the public. You can watch a live stream on fox11online.com.
FOX 11's Ben Krumholz spoke with Paul Caruso, a geophysicist from the U.S. Geological Survey this afternoon.
Caruso confirms, after gathering more data, the USGS was able to identify a boom on Tuesday as a 1.5 magnitude earthquake. He says it happened at 12:15 a.m.
Click here for details on the Clintonville earthquake
The USGS is looking into if the other booms and shakes in Clintonville were also earthquakes. However, he says even if more quakes are found, the 1.5 magnitude quake will likely be the largest.
Caruso tells FOX 11 it is the smallest earthquake he has ever heard of that people actually felt. He says similar earthquakes happen all the time in California, but people never feel them. Caruso says it is because the rock in Wisconsin is very old and well consolidated. He says the 1.5 magnitude quake would have likely only been felt within a few blocks around its epicenter.
“Our seismometers did not detect it initially, so we got reports that people felt something and we went back and looked at the data from that time and in that place and we finally were able to get enough data together to locate the earthquake. It was very small and very hard to locate,” said Caurso.
“So does this explain the booms and shakes people felt days before it and a little bit after?” asked FOX 11’s Ben Krumholz.
“There may have been additional quakes and we are looking into that right now, trying to locate those if there were additional quakes,” Caruso replied.
FOX 11's Ben Krumholz is working on the story and will have more on FOX 11 News at Nine.
http://www.fox11online.com/dpp/news...firms-15-magnitude-earthquake-in-clintonville